feat: add MCP endpoint exposing calendar tools over Streamable HTTP

Adds a POST /mcp endpoint (github.com/modelcontextprotocol/go-sdk) with
three tools mirroring the existing /calendar logic: get_calendar_today,
get_calendar_for_date and get_holidays. Bumps go.mod to Go 1.25 (required
by the SDK) and vendors the new dependencies. Also fixes an unanchored
.gitignore rule ("domogeek") that was silently excluding all untracked
files under cmd/domogeek/.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Hu8wwahgecuCGfesTKCfEd

vendor/golang.org/x/sys/windows/aliases.go

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build windows && go1.9
-// +build windows,go1.9
+//go:build windows
 
 package windows
 

vendor/golang.org/x/sys/windows/dll_windows.go

@@ -43,8 +43,8 @@ type DLL struct {
 // LoadDLL loads DLL file into memory.
 //
 // Warning: using LoadDLL without an absolute path name is subject to
-// DLL preloading attacks. To safely load a system DLL, use LazyDLL
-// with System set to true, or use LoadLibraryEx directly.
+// DLL preloading attacks. To safely load a system DLL, use [NewLazySystemDLL],
+// or use [LoadLibraryEx] directly.
 func LoadDLL(name string) (dll *DLL, err error) {
 	namep, err := UTF16PtrFromString(name)
 	if err != nil {
@@ -65,7 +65,7 @@ func LoadDLL(name string) (dll *DLL, err error) {
 	return d, nil
 }
 
-// MustLoadDLL is like LoadDLL but panics if load operation failes.
+// MustLoadDLL is like LoadDLL but panics if load operation fails.
 func MustLoadDLL(name string) *DLL {
 	d, e := LoadDLL(name)
 	if e != nil {
@@ -271,6 +271,9 @@ func (d *LazyDLL) NewProc(name string) *LazyProc {
 }
 
 // NewLazyDLL creates new LazyDLL associated with DLL file.
+//
+// Warning: using NewLazyDLL without an absolute path name is subject to
+// DLL preloading attacks. To safely load a system DLL, use [NewLazySystemDLL].
 func NewLazyDLL(name string) *LazyDLL {
 	return &LazyDLL{Name: name}
 }
@@ -410,7 +413,3 @@ func loadLibraryEx(name string, system bool) (*DLL, error) {
 	}
 	return &DLL{Name: name, Handle: h}, nil
 }
-
-type errString string
-
-func (s errString) Error() string { return string(s) }

vendor/golang.org/x/sys/windows/empty.s

@@ -1,9 +0,0 @@
-// Copyright 2019 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//go:build !go1.12
-// +build !go1.12
-
-// This file is here to allow bodyless functions with go:linkname for Go 1.11
-// and earlier (see https://golang.org/issue/23311).

vendor/golang.org/x/sys/windows/env_windows.go

@@ -37,14 +37,17 @@ func (token Token) Environ(inheritExisting bool) (env []string, err error) {
 		return nil, err
 	}
 	defer DestroyEnvironmentBlock(block)
-	blockp := uintptr(unsafe.Pointer(block))
-	for {
-		entry := UTF16PtrToString((*uint16)(unsafe.Pointer(blockp)))
-		if len(entry) == 0 {
-			break
+	size := unsafe.Sizeof(*block)
+	for *block != 0 {
+		// find NUL terminator
+		end := unsafe.Pointer(block)
+		for *(*uint16)(end) != 0 {
+			end = unsafe.Add(end, size)
 		}
-		env = append(env, entry)
-		blockp += 2 * (uintptr(len(entry)) + 1)
+
+		entry := unsafe.Slice(block, (uintptr(end)-uintptr(unsafe.Pointer(block)))/size)
+		env = append(env, UTF16ToString(entry))
+		block = (*uint16)(unsafe.Add(end, size))
 	}
 	return env, nil
 }

vendor/golang.org/x/sys/windows/eventlog.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows
-// +build windows
 
 package windows
 

vendor/golang.org/x/sys/windows/exec_windows.go

@@ -15,14 +15,14 @@ import (
 // in http://msdn.microsoft.com/en-us/library/ms880421.
 // This function returns "" (2 double quotes) if s is empty.
 // Alternatively, these transformations are done:
-// - every back slash (\) is doubled, but only if immediately
-//   followed by double quote (");
-// - every double quote (") is escaped by back slash (\);
-// - finally, s is wrapped with double quotes (arg -> "arg"),
-//   but only if there is space or tab inside s.
+//   - every back slash (\) is doubled, but only if immediately
+//     followed by double quote (");
+//   - every double quote (") is escaped by back slash (\);
+//   - finally, s is wrapped with double quotes (arg -> "arg"),
+//     but only if there is space or tab inside s.
 func EscapeArg(s string) string {
 	if len(s) == 0 {
-		return "\"\""
+		return `""`
 	}
 	n := len(s)
 	hasSpace := false
@@ -35,7 +35,7 @@ func EscapeArg(s string) string {
 		}
 	}
 	if hasSpace {
-		n += 2
+		n += 2 // Reserve space for quotes.
 	}
 	if n == len(s) {
 		return s
@@ -82,36 +82,106 @@ func EscapeArg(s string) string {
 // in CreateProcess's CommandLine argument, CreateService/ChangeServiceConfig's BinaryPathName argument,
 // or any program that uses CommandLineToArgv.
 func ComposeCommandLine(args []string) string {
-	var commandLine string
-	for i := range args {
-		if i > 0 {
-			commandLine += " "
-		}
-		commandLine += EscapeArg(args[i])
+	if len(args) == 0 {
+		return ""
 	}
-	return commandLine
+
+	// Per https://learn.microsoft.com/en-us/windows/win32/api/shellapi/nf-shellapi-commandlinetoargvw:
+	// “This function accepts command lines that contain a program name; the
+	// program name can be enclosed in quotation marks or not.”
+	//
+	// Unfortunately, it provides no means of escaping interior quotation marks
+	// within that program name, and we have no way to report them here.
+	prog := args[0]
+	mustQuote := len(prog) == 0
+	for i := 0; i < len(prog); i++ {
+		c := prog[i]
+		if c <= ' ' || (c == '"' && i == 0) {
+			// Force quotes for not only the ASCII space and tab as described in the
+			// MSDN article, but also ASCII control characters.
+			// The documentation for CommandLineToArgvW doesn't say what happens when
+			// the first argument is not a valid program name, but it empirically
+			// seems to drop unquoted control characters.
+			mustQuote = true
+			break
+		}
+	}
+	var commandLine []byte
+	if mustQuote {
+		commandLine = make([]byte, 0, len(prog)+2)
+		commandLine = append(commandLine, '"')
+		for i := 0; i < len(prog); i++ {
+			c := prog[i]
+			if c == '"' {
+				// This quote would interfere with our surrounding quotes.
+				// We have no way to report an error, so just strip out
+				// the offending character instead.
+				continue
+			}
+			commandLine = append(commandLine, c)
+		}
+		commandLine = append(commandLine, '"')
+	} else {
+		if len(args) == 1 {
+			// args[0] is a valid command line representing itself.
+			// No need to allocate a new slice or string for it.
+			return prog
+		}
+		commandLine = []byte(prog)
+	}
+
+	for _, arg := range args[1:] {
+		commandLine = append(commandLine, ' ')
+		// TODO(bcmills): since we're already appending to a slice, it would be nice
+		// to avoid the intermediate allocations of EscapeArg.
+		// Perhaps we can factor out an appendEscapedArg function.
+		commandLine = append(commandLine, EscapeArg(arg)...)
+	}
+	return string(commandLine)
 }
 
 // DecomposeCommandLine breaks apart its argument command line into unescaped parts using CommandLineToArgv,
 // as gathered from GetCommandLine, QUERY_SERVICE_CONFIG's BinaryPathName argument, or elsewhere that
 // command lines are passed around.
+// DecomposeCommandLine returns an error if commandLine contains NUL.
 func DecomposeCommandLine(commandLine string) ([]string, error) {
 	if len(commandLine) == 0 {
 		return []string{}, nil
 	}
+	utf16CommandLine, err := UTF16FromString(commandLine)
+	if err != nil {
+		return nil, errorspkg.New("string with NUL passed to DecomposeCommandLine")
+	}
 	var argc int32
-	argv, err := CommandLineToArgv(StringToUTF16Ptr(commandLine), &argc)
+	argv, err := commandLineToArgv(&utf16CommandLine[0], &argc)
 	if err != nil {
 		return nil, err
 	}
 	defer LocalFree(Handle(unsafe.Pointer(argv)))
+
 	var args []string
-	for _, v := range (*argv)[:argc] {
-		args = append(args, UTF16ToString((*v)[:]))
+	for _, p := range unsafe.Slice(argv, argc) {
+		args = append(args, UTF16PtrToString(p))
 	}
 	return args, nil
 }
 
+// CommandLineToArgv parses a Unicode command line string and sets
+// argc to the number of parsed arguments.
+//
+// The returned memory should be freed using a single call to LocalFree.
+//
+// Note that although the return type of CommandLineToArgv indicates 8192
+// entries of up to 8192 characters each, the actual count of parsed arguments
+// may exceed 8192, and the documentation for CommandLineToArgvW does not mention
+// any bound on the lengths of the individual argument strings.
+// (See https://go.dev/issue/63236.)
+func CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) {
+	argp, err := commandLineToArgv(cmd, argc)
+	argv = (*[8192]*[8192]uint16)(unsafe.Pointer(argp))
+	return argv, err
+}
+
 func CloseOnExec(fd Handle) {
 	SetHandleInformation(Handle(fd), HANDLE_FLAG_INHERIT, 0)
 }

vendor/golang.org/x/sys/windows/mksyscall.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build generate
-// +build generate
 
 package windows
 

vendor/golang.org/x/sys/windows/race.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows && race
-// +build windows,race
 
 package windows
 

vendor/golang.org/x/sys/windows/race0.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows && !race
-// +build windows,!race
 
 package windows
 

vendor/golang.org/x/sys/windows/security_windows.go

@@ -7,8 +7,6 @@ package windows
 import (
 	"syscall"
 	"unsafe"
-
-	"golang.org/x/sys/internal/unsafeheader"
 )
 
 const (
@@ -70,6 +68,7 @@ type UserInfo10 struct {
 //sys	NetUserGetInfo(serverName *uint16, userName *uint16, level uint32, buf **byte) (neterr error) = netapi32.NetUserGetInfo
 //sys	NetGetJoinInformation(server *uint16, name **uint16, bufType *uint32) (neterr error) = netapi32.NetGetJoinInformation
 //sys	NetApiBufferFree(buf *byte) (neterr error) = netapi32.NetApiBufferFree
+//sys   NetUserEnum(serverName *uint16, level uint32, filter uint32, buf **byte, prefMaxLen uint32, entriesRead *uint32, totalEntries *uint32, resumeHandle *uint32) (neterr error) = netapi32.NetUserEnum
 
 const (
 	// do not reorder
@@ -895,7 +894,7 @@ type ACL struct {
 	aclRevision byte
 	sbz1        byte
 	aclSize     uint16
-	aceCount    uint16
+	AceCount    uint16
 	sbz2        uint16
 }
 
@@ -1088,6 +1087,27 @@ type EXPLICIT_ACCESS struct {
 	Trustee           TRUSTEE
 }
 
+// https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-ace_header
+type ACE_HEADER struct {
+	AceType  uint8
+	AceFlags uint8
+	AceSize  uint16
+}
+
+// https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-access_allowed_ace
+type ACCESS_ALLOWED_ACE struct {
+	Header   ACE_HEADER
+	Mask     ACCESS_MASK
+	SidStart uint32
+}
+
+const (
+	// Constants for AceType
+	// https://learn.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-ace_header
+	ACCESS_ALLOWED_ACE_TYPE = 0
+	ACCESS_DENIED_ACE_TYPE  = 1
+)
+
 // This type is the union inside of TRUSTEE and must be created using one of the TrusteeValueFrom* functions.
 type TrusteeValue uintptr
 
@@ -1159,6 +1179,7 @@ type OBJECTS_AND_NAME struct {
 //sys	makeSelfRelativeSD(absoluteSD *SECURITY_DESCRIPTOR, selfRelativeSD *SECURITY_DESCRIPTOR, selfRelativeSDSize *uint32) (err error) = advapi32.MakeSelfRelativeSD
 
 //sys	setEntriesInAcl(countExplicitEntries uint32, explicitEntries *EXPLICIT_ACCESS, oldACL *ACL, newACL **ACL) (ret error) = advapi32.SetEntriesInAclW
+//sys	GetAce(acl *ACL, aceIndex uint32, pAce **ACCESS_ALLOWED_ACE) (err error) = advapi32.GetAce
 
 // Control returns the security descriptor control bits.
 func (sd *SECURITY_DESCRIPTOR) Control() (control SECURITY_DESCRIPTOR_CONTROL, revision uint32, err error) {
@@ -1282,7 +1303,10 @@ func (selfRelativeSD *SECURITY_DESCRIPTOR) ToAbsolute() (absoluteSD *SECURITY_DE
 		return nil, err
 	}
 	if absoluteSDSize > 0 {
-		absoluteSD = (*SECURITY_DESCRIPTOR)(unsafe.Pointer(&make([]byte, absoluteSDSize)[0]))
+		absoluteSD = new(SECURITY_DESCRIPTOR)
+		if unsafe.Sizeof(*absoluteSD) < uintptr(absoluteSDSize) {
+			panic("sizeof(SECURITY_DESCRIPTOR) too small")
+		}
 	}
 	var (
 		dacl  *ACL
@@ -1291,19 +1315,55 @@ func (selfRelativeSD *SECURITY_DESCRIPTOR) ToAbsolute() (absoluteSD *SECURITY_DE
 		group *SID
 	)
 	if daclSize > 0 {
-		dacl = (*ACL)(unsafe.Pointer(&make([]byte, daclSize)[0]))
+		dacl = (*ACL)(unsafe.Pointer(unsafe.SliceData(make([]byte, daclSize))))
 	}
 	if saclSize > 0 {
-		sacl = (*ACL)(unsafe.Pointer(&make([]byte, saclSize)[0]))
+		sacl = (*ACL)(unsafe.Pointer(unsafe.SliceData(make([]byte, saclSize))))
 	}
 	if ownerSize > 0 {
-		owner = (*SID)(unsafe.Pointer(&make([]byte, ownerSize)[0]))
+		owner = (*SID)(unsafe.Pointer(unsafe.SliceData(make([]byte, ownerSize))))
 	}
 	if groupSize > 0 {
-		group = (*SID)(unsafe.Pointer(&make([]byte, groupSize)[0]))
+		group = (*SID)(unsafe.Pointer(unsafe.SliceData(make([]byte, groupSize))))
 	}
+	// We call into Windows via makeAbsoluteSD, which sets up
+	// pointers within absoluteSD that point to other chunks of memory
+	// we pass into makeAbsoluteSD, and that happens outside the view of the GC.
+	// We therefore take some care here to then verify the pointers are as we expect
+	// and set them explicitly in view of the GC. See https://go.dev/issue/73199.
+	// TODO: consider weak pointers once Go 1.24 is appropriate. See suggestion in https://go.dev/cl/663575.
 	err = makeAbsoluteSD(selfRelativeSD, absoluteSD, &absoluteSDSize,
 		dacl, &daclSize, sacl, &saclSize, owner, &ownerSize, group, &groupSize)
+	if err != nil {
+		// Don't return absoluteSD, which might be partially initialized.
+		return nil, err
+	}
+	// Before using any fields, verify absoluteSD is in the format we expect according to Windows.
+	// See https://learn.microsoft.com/en-us/windows/win32/secauthz/absolute-and-self-relative-security-descriptors
+	absControl, _, err := absoluteSD.Control()
+	if err != nil {
+		panic("absoluteSD: " + err.Error())
+	}
+	if absControl&SE_SELF_RELATIVE != 0 {
+		panic("absoluteSD not in absolute format")
+	}
+	if absoluteSD.dacl != dacl {
+		panic("dacl pointer mismatch")
+	}
+	if absoluteSD.sacl != sacl {
+		panic("sacl pointer mismatch")
+	}
+	if absoluteSD.owner != owner {
+		panic("owner pointer mismatch")
+	}
+	if absoluteSD.group != group {
+		panic("group pointer mismatch")
+	}
+	absoluteSD.dacl = dacl
+	absoluteSD.sacl = sacl
+	absoluteSD.owner = owner
+	absoluteSD.group = group
+
 	return
 }
 
@@ -1341,21 +1401,14 @@ func (selfRelativeSD *SECURITY_DESCRIPTOR) copySelfRelativeSecurityDescriptor()
 		sdLen = min
 	}
 
-	var src []byte
-	h := (*unsafeheader.Slice)(unsafe.Pointer(&src))
-	h.Data = unsafe.Pointer(selfRelativeSD)
-	h.Len = sdLen
-	h.Cap = sdLen
-
+	src := unsafe.Slice((*byte)(unsafe.Pointer(selfRelativeSD)), sdLen)
+	// SECURITY_DESCRIPTOR has pointers in it, which means checkptr expects for it to
+	// be aligned properly. When we're copying a Windows-allocated struct to a
+	// Go-allocated one, make sure that the Go allocation is aligned to the
+	// pointer size.
 	const psize = int(unsafe.Sizeof(uintptr(0)))
-
-	var dst []byte
-	h = (*unsafeheader.Slice)(unsafe.Pointer(&dst))
 	alloc := make([]uintptr, (sdLen+psize-1)/psize)
-	h.Data = (*unsafeheader.Slice)(unsafe.Pointer(&alloc)).Data
-	h.Len = sdLen
-	h.Cap = sdLen
-
+	dst := unsafe.Slice((*byte)(unsafe.Pointer(&alloc[0])), sdLen)
 	copy(dst, src)
 	return (*SECURITY_DESCRIPTOR)(unsafe.Pointer(&dst[0]))
 }

vendor/golang.org/x/sys/windows/service.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows
-// +build windows
 
 package windows
 
@@ -141,6 +140,12 @@ const (
 	SERVICE_DYNAMIC_INFORMATION_LEVEL_START_REASON = 1
 )
 
+type ENUM_SERVICE_STATUS struct {
+	ServiceName   *uint16
+	DisplayName   *uint16
+	ServiceStatus SERVICE_STATUS
+}
+
 type SERVICE_STATUS struct {
 	ServiceType             uint32
 	CurrentState            uint32
@@ -212,6 +217,10 @@ type SERVICE_FAILURE_ACTIONS struct {
 	Actions      *SC_ACTION
 }
 
+type SERVICE_FAILURE_ACTIONS_FLAG struct {
+	FailureActionsOnNonCrashFailures int32
+}
+
 type SC_ACTION struct {
 	Type  uint32
 	Delay uint32
@@ -245,3 +254,4 @@ type QUERY_SERVICE_LOCK_STATUS struct {
 //sys	UnsubscribeServiceChangeNotifications(subscription uintptr) = sechost.UnsubscribeServiceChangeNotifications?
 //sys	RegisterServiceCtrlHandlerEx(serviceName *uint16, handlerProc uintptr, context uintptr) (handle Handle, err error) = advapi32.RegisterServiceCtrlHandlerExW
 //sys	QueryServiceDynamicInformation(service Handle, infoLevel uint32, dynamicInfo unsafe.Pointer) (err error) = advapi32.QueryServiceDynamicInformation?
+//sys	EnumDependentServices(service Handle, activityState uint32, services *ENUM_SERVICE_STATUS, buffSize uint32, bytesNeeded *uint32, servicesReturned *uint32) (err error) = advapi32.EnumDependentServicesW

vendor/golang.org/x/sys/windows/setupapi_windows.go

@@ -296,7 +296,7 @@ const (
 	// Flag to indicate that the sorting from the INF file should be used.
 	DI_INF_IS_SORTED DI_FLAGS = 0x00008000
 
-	// Flag to indicate that only the the INF specified by SP_DEVINSTALL_PARAMS.DriverPath should be searched.
+	// Flag to indicate that only the INF specified by SP_DEVINSTALL_PARAMS.DriverPath should be searched.
 	DI_ENUMSINGLEINF DI_FLAGS = 0x00010000
 
 	// Flag that prevents ConfigMgr from removing/re-enumerating devices during device

vendor/golang.org/x/sys/windows/str.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows
-// +build windows
 
 package windows
 

vendor/golang.org/x/sys/windows/syscall.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build windows
-// +build windows
 
 // Package windows contains an interface to the low-level operating system
 // primitives. OS details vary depending on the underlying system, and
@@ -30,8 +29,6 @@ import (
 	"strings"
 	"syscall"
 	"unsafe"
-
-	"golang.org/x/sys/internal/unsafeheader"
 )
 
 // ByteSliceFromString returns a NUL-terminated slice of bytes
@@ -83,13 +80,7 @@ func BytePtrToString(p *byte) string {
 		ptr = unsafe.Pointer(uintptr(ptr) + 1)
 	}
 
-	var s []byte
-	h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
-	h.Data = unsafe.Pointer(p)
-	h.Len = n
-	h.Cap = n
-
-	return string(s)
+	return string(unsafe.Slice(p, n))
 }
 
 // Single-word zero for use when we need a valid pointer to 0 bytes.

vendor/golang.org/x/sys/windows/syscall_windows.go

@@ -15,12 +15,12 @@ import (
 	"time"
 	"unicode/utf16"
 	"unsafe"
-
-	"golang.org/x/sys/internal/unsafeheader"
 )
 
-type Handle uintptr
-type HWND uintptr
+type (
+	Handle uintptr
+	HWND   uintptr
+)
 
 const (
 	InvalidHandle = ^Handle(0)
@@ -86,24 +86,13 @@ func StringToUTF16(s string) []uint16 {
 // s, with a terminating NUL added. If s contains a NUL byte at any
 // location, it returns (nil, syscall.EINVAL).
 func UTF16FromString(s string) ([]uint16, error) {
-	for i := 0; i < len(s); i++ {
-		if s[i] == 0 {
-			return nil, syscall.EINVAL
-		}
-	}
-	return utf16.Encode([]rune(s + "\x00")), nil
+	return syscall.UTF16FromString(s)
 }
 
 // UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,
 // with a terminating NUL and any bytes after the NUL removed.
 func UTF16ToString(s []uint16) string {
-	for i, v := range s {
-		if v == 0 {
-			s = s[:i]
-			break
-		}
-	}
-	return string(utf16.Decode(s))
+	return syscall.UTF16ToString(s)
 }
 
 // StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead.
@@ -138,28 +127,21 @@ func UTF16PtrToString(p *uint16) string {
 	for ptr := unsafe.Pointer(p); *(*uint16)(ptr) != 0; n++ {
 		ptr = unsafe.Pointer(uintptr(ptr) + unsafe.Sizeof(*p))
 	}
-
-	var s []uint16
-	h := (*unsafeheader.Slice)(unsafe.Pointer(&s))
-	h.Data = unsafe.Pointer(p)
-	h.Len = n
-	h.Cap = n
-
-	return string(utf16.Decode(s))
+	return UTF16ToString(unsafe.Slice(p, n))
 }
 
 func Getpagesize() int { return 4096 }
 
 // NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
 // This is useful when interoperating with Windows code requiring callbacks.
-// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
+// The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
 func NewCallback(fn interface{}) uintptr {
 	return syscall.NewCallback(fn)
 }
 
 // NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention.
 // This is useful when interoperating with Windows code requiring callbacks.
-// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
+// The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
 func NewCallbackCDecl(fn interface{}) uintptr {
 	return syscall.NewCallbackCDecl(fn)
 }
@@ -174,6 +156,8 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW
 //sys	GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW
 //sys	SetDefaultDllDirectories(directoryFlags uint32) (err error)
+//sys	AddDllDirectory(path *uint16) (cookie uintptr, err error) = kernel32.AddDllDirectory
+//sys	RemoveDllDirectory(cookie uintptr) (err error) = kernel32.RemoveDllDirectory
 //sys	SetDllDirectory(path string) (err error) = kernel32.SetDllDirectoryW
 //sys	GetVersion() (ver uint32, err error)
 //sys	FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW
@@ -183,11 +167,14 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
 //sys	CreateNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *SecurityAttributes) (handle Handle, err error)  [failretval==InvalidHandle] = CreateNamedPipeW
 //sys	ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error)
+//sys	DisconnectNamedPipe(pipe Handle) (err error)
+//sys   GetNamedPipeClientProcessId(pipe Handle, clientProcessID *uint32) (err error)
+//sys   GetNamedPipeServerProcessId(pipe Handle, serverProcessID *uint32) (err error)
 //sys	GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error)
 //sys	GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
 //sys	SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState
-//sys	ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
-//sys	WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
+//sys	readFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = ReadFile
+//sys	writeFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = WriteFile
 //sys	GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error)
 //sys	SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]
 //sys	CloseHandle(handle Handle) (err error)
@@ -211,6 +198,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW
 //sys	GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW
 //sys	SetEndOfFile(handle Handle) (err error)
+//sys	SetFileValidData(handle Handle, validDataLength int64) (err error)
 //sys	GetSystemTimeAsFileTime(time *Filetime)
 //sys	GetSystemTimePreciseAsFileTime(time *Filetime)
 //sys	GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]
@@ -227,13 +215,17 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error)
 //sys	ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW
 //sys	GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId
+//sys	LoadKeyboardLayout(name *uint16, flags uint32) (hkl Handle, err error) [failretval==0] = user32.LoadKeyboardLayoutW
+//sys	UnloadKeyboardLayout(hkl Handle) (err error) = user32.UnloadKeyboardLayout
+//sys	GetKeyboardLayout(tid uint32) (hkl Handle) = user32.GetKeyboardLayout
+//sys	ToUnicodeEx(vkey uint32, scancode uint32, keystate *byte, pwszBuff *uint16, cchBuff int32, flags uint32, hkl Handle) (ret int32) = user32.ToUnicodeEx
 //sys	GetShellWindow() (shellWindow HWND) = user32.GetShellWindow
 //sys	MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW
 //sys	ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx
 //sys	shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath
 //sys	TerminateProcess(handle Handle, exitcode uint32) (err error)
 //sys	GetExitCodeProcess(handle Handle, exitcode *uint32) (err error)
-//sys	GetStartupInfo(startupInfo *StartupInfo) (err error) = GetStartupInfoW
+//sys	getStartupInfo(startupInfo *StartupInfo) = GetStartupInfoW
 //sys	GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error)
 //sys	DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)
 //sys	WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]
@@ -252,12 +244,13 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock
 //sys	DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock
 //sys	getTickCount64() (ms uint64) = kernel32.GetTickCount64
+//sys   GetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
 //sys	SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
 //sys	GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
 //sys	SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW
 //sys	GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW
 //sys	GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
-//sys	CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW
+//sys	commandLineToArgv(cmd *uint16, argc *int32) (argv **uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW
 //sys	LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0]
 //sys	LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error)
 //sys	SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error)
@@ -316,12 +309,21 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue
 //sys	GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId
 //sys	ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId
+//sys	ClosePseudoConsole(console Handle) = kernel32.ClosePseudoConsole
+//sys	createPseudoConsole(size uint32, in Handle, out Handle, flags uint32, pconsole *Handle) (hr error) = kernel32.CreatePseudoConsole
 //sys	GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode
 //sys	SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode
 //sys	GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo
 //sys	setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition
+//sys	GetConsoleCP() (cp uint32, err error) = kernel32.GetConsoleCP
+//sys	GetConsoleOutputCP() (cp uint32, err error) = kernel32.GetConsoleOutputCP
+//sys	SetConsoleCP(cp uint32) (err error) = kernel32.SetConsoleCP
+//sys	SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP
 //sys	WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
 //sys	ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
+//sys	GetNumberOfConsoleInputEvents(console Handle, numevents *uint32) (err error) = kernel32.GetNumberOfConsoleInputEvents
+//sys	FlushConsoleInputBuffer(console Handle) (err error) = kernel32.FlushConsoleInputBuffer
+//sys	resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole
 //sys	CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot
 //sys	Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW
 //sys	Module32Next(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32NextW
@@ -361,10 +363,31 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
 //sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)
 //sys	SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)
+//sys	ClearCommBreak(handle Handle) (err error)
+//sys	ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error)
+//sys	EscapeCommFunction(handle Handle, dwFunc uint32) (err error)
+//sys	GetCommState(handle Handle, lpDCB *DCB) (err error)
+//sys	GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error)
 //sys	GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
+//sys	PurgeComm(handle Handle, dwFlags uint32) (err error)
+//sys	SetCommBreak(handle Handle) (err error)
+//sys	SetCommMask(handle Handle, dwEvtMask uint32) (err error)
+//sys	SetCommState(handle Handle, lpDCB *DCB) (err error)
 //sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
+//sys	SetupComm(handle Handle, dwInQueue uint32, dwOutQueue uint32) (err error)
+//sys	WaitCommEvent(handle Handle, lpEvtMask *uint32, lpOverlapped *Overlapped) (err error)
 //sys	GetActiveProcessorCount(groupNumber uint16) (ret uint32)
 //sys	GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
+//sys	EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows
+//sys	EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows
+//sys	GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW
+//sys	GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow
+//sys	GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow
+//sys	IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow
+//sys	IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode
+//sys	IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible
+//sys	GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo
+//sys	GetLargePageMinimum() (size uintptr)
 
 // Volume Management Functions
 //sys	DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW
@@ -412,12 +435,13 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW
 
 // Process Status API (PSAPI)
-//sys	EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses
+//sys	enumProcesses(processIds *uint32, nSize uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses
 //sys	EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules
 //sys	EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx
 //sys	GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation
 //sys	GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW
 //sys	GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW
+//sys   QueryWorkingSetEx(process Handle, pv uintptr, cb uint32) (err error) = psapi.QueryWorkingSetEx
 
 // NT Native APIs
 //sys	rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb
@@ -439,6 +463,14 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable
 //sys	RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable
 
+// Desktop Window Manager API (Dwmapi)
+//sys	DwmGetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmGetWindowAttribute
+//sys	DwmSetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmSetWindowAttribute
+
+// Windows Multimedia API
+//sys TimeBeginPeriod (period uint32) (err error) [failretval != 0] = winmm.timeBeginPeriod
+//sys TimeEndPeriod (period uint32) (err error) [failretval != 0] = winmm.timeEndPeriod
+
 // syscall interface implementation for other packages
 
 // GetCurrentProcess returns the handle for the current process.
@@ -549,12 +581,6 @@ func Read(fd Handle, p []byte) (n int, err error) {
 		}
 		return 0, e
 	}
-	if raceenabled {
-		if done > 0 {
-			raceWriteRange(unsafe.Pointer(&p[0]), int(done))
-		}
-		raceAcquire(unsafe.Pointer(&ioSync))
-	}
 	return int(done), nil
 }
 
@@ -567,12 +593,31 @@ func Write(fd Handle, p []byte) (n int, err error) {
 	if e != nil {
 		return 0, e
 	}
-	if raceenabled && done > 0 {
-		raceReadRange(unsafe.Pointer(&p[0]), int(done))
-	}
 	return int(done), nil
 }
 
+func ReadFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {
+	err := readFile(fd, p, done, overlapped)
+	if raceenabled {
+		if *done > 0 {
+			raceWriteRange(unsafe.Pointer(&p[0]), int(*done))
+		}
+		raceAcquire(unsafe.Pointer(&ioSync))
+	}
+	return err
+}
+
+func WriteFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {
+	if raceenabled {
+		raceReleaseMerge(unsafe.Pointer(&ioSync))
+	}
+	err := writeFile(fd, p, done, overlapped)
+	if raceenabled && *done > 0 {
+		raceReadRange(unsafe.Pointer(&p[0]), int(*done))
+	}
+	return err
+}
+
 var ioSync int64
 
 func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) {
@@ -611,7 +656,6 @@ var (
 
 func getStdHandle(stdhandle uint32) (fd Handle) {
 	r, _ := GetStdHandle(stdhandle)
-	CloseOnExec(r)
 	return r
 }
 
@@ -685,20 +729,12 @@ func DurationSinceBoot() time.Duration {
 }
 
 func Ftruncate(fd Handle, length int64) (err error) {
-	curoffset, e := Seek(fd, 0, 1)
-	if e != nil {
-		return e
+	type _FILE_END_OF_FILE_INFO struct {
+		EndOfFile int64
 	}
-	defer Seek(fd, curoffset, 0)
-	_, e = Seek(fd, length, 0)
-	if e != nil {
-		return e
-	}
-	e = SetEndOfFile(fd)
-	if e != nil {
-		return e
-	}
-	return nil
+	var info _FILE_END_OF_FILE_INFO
+	info.EndOfFile = length
+	return SetFileInformationByHandle(fd, FileEndOfFileInfo, (*byte)(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)))
 }
 
 func Gettimeofday(tv *Timeval) (err error) {
@@ -736,7 +772,7 @@ func Utimes(path string, tv []Timeval) (err error) {
 	if e != nil {
 		return e
 	}
-	defer Close(h)
+	defer CloseHandle(h)
 	a := NsecToFiletime(tv[0].Nanoseconds())
 	w := NsecToFiletime(tv[1].Nanoseconds())
 	return SetFileTime(h, nil, &a, &w)
@@ -756,7 +792,7 @@ func UtimesNano(path string, ts []Timespec) (err error) {
 	if e != nil {
 		return e
 	}
-	defer Close(h)
+	defer CloseHandle(h)
 	a := NsecToFiletime(TimespecToNsec(ts[0]))
 	w := NsecToFiletime(TimespecToNsec(ts[1]))
 	return SetFileTime(h, nil, &a, &w)
@@ -814,6 +850,9 @@ const socket_error = uintptr(^uint32(0))
 //sys	WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup
 //sys	WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup
 //sys	WSAIoctl(s Handle, iocc uint32, inbuf *byte, cbif uint32, outbuf *byte, cbob uint32, cbbr *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) [failretval==socket_error] = ws2_32.WSAIoctl
+//sys	WSALookupServiceBegin(querySet *WSAQUERYSET, flags uint32, handle *Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceBeginW
+//sys	WSALookupServiceNext(handle Handle, flags uint32, size *int32, querySet *WSAQUERYSET) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceNextW
+//sys	WSALookupServiceEnd(handle Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceEnd
 //sys	socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket
 //sys	sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto
 //sys	recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom
@@ -833,6 +872,7 @@ const socket_error = uintptr(^uint32(0))
 //sys	WSARecvFrom(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32,  from *RawSockaddrAny, fromlen *int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecvFrom
 //sys	WSASendTo(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to *RawSockaddrAny, tolen int32,  overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASendTo
 //sys	WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW
+//sys	WSADuplicateSocket(s Handle, processID uint32, info *WSAProtocolInfo) (err error) [failretval!=0] = ws2_32.WSADuplicateSocketW
 //sys	GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname
 //sys	GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname
 //sys	Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs
@@ -850,6 +890,17 @@ const socket_error = uintptr(^uint32(0))
 //sys	GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
 //sys	GetACP() (acp uint32) = kernel32.GetACP
 //sys	MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
+//sys	getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx
+//sys   GetIfEntry2Ex(level uint32, row *MibIfRow2) (errcode error) = iphlpapi.GetIfEntry2Ex
+//sys   GetIpForwardEntry2(row *MibIpForwardRow2) (errcode error) = iphlpapi.GetIpForwardEntry2
+//sys   GetIpForwardTable2(family uint16, table **MibIpForwardTable2) (errcode error) = iphlpapi.GetIpForwardTable2
+//sys   GetUnicastIpAddressEntry(row *MibUnicastIpAddressRow) (errcode error) = iphlpapi.GetUnicastIpAddressEntry
+//sys   FreeMibTable(memory unsafe.Pointer) = iphlpapi.FreeMibTable
+//sys   NotifyIpInterfaceChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyIpInterfaceChange
+//sys   NotifyRouteChange2(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyRouteChange2
+//sys   NotifyUnicastIpAddressChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyUnicastIpAddressChange
+//sys   CancelMibChangeNotify2(notificationHandle Handle) (errcode error) = iphlpapi.CancelMibChangeNotify2
+//sys	IsProcessorFeaturePresent(ProcessorFeature uint32) (ret bool) = kernel32.IsProcessorFeaturePresent
 
 // For testing: clients can set this flag to force
 // creation of IPv6 sockets to return EAFNOSUPPORT.
@@ -870,6 +921,17 @@ type RawSockaddrInet6 struct {
 	Scope_id uint32
 }
 
+// RawSockaddrInet is a union that contains an IPv4, an IPv6 address, or an address family. See
+// https://learn.microsoft.com/en-us/windows/win32/api/ws2ipdef/ns-ws2ipdef-sockaddr_inet.
+//
+// A [*RawSockaddrInet] may be converted to a [*RawSockaddrInet4] or [*RawSockaddrInet6] using
+// unsafe, depending on the address family.
+type RawSockaddrInet struct {
+	Family uint16
+	Port   uint16
+	Data   [6]uint32
+}
+
 type RawSockaddr struct {
 	Family uint16
 	Data   [14]int8
@@ -950,7 +1012,8 @@ func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {
 	if n > 0 {
 		sl += int32(n) + 1
 	}
-	if sa.raw.Path[0] == '@' {
+	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
+		// Check sl > 3 so we don't change unnamed socket behavior.
 		sa.raw.Path[0] = 0
 		// Don't count trailing NUL for abstract address.
 		sl--
@@ -959,6 +1022,32 @@ func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {
 	return unsafe.Pointer(&sa.raw), sl, nil
 }
 
+type RawSockaddrBth struct {
+	AddressFamily  [2]byte
+	BtAddr         [8]byte
+	ServiceClassId [16]byte
+	Port           [4]byte
+}
+
+type SockaddrBth struct {
+	BtAddr         uint64
+	ServiceClassId GUID
+	Port           uint32
+
+	raw RawSockaddrBth
+}
+
+func (sa *SockaddrBth) sockaddr() (unsafe.Pointer, int32, error) {
+	family := AF_BTH
+	sa.raw = RawSockaddrBth{
+		AddressFamily:  *(*[2]byte)(unsafe.Pointer(&family)),
+		BtAddr:         *(*[8]byte)(unsafe.Pointer(&sa.BtAddr)),
+		Port:           *(*[4]byte)(unsafe.Pointer(&sa.Port)),
+		ServiceClassId: *(*[16]byte)(unsafe.Pointer(&sa.ServiceClassId)),
+	}
+	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
+}
+
 func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_UNIX:
@@ -982,8 +1071,7 @@ func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {
 		for n < len(pp.Path) && pp.Path[n] != 0 {
 			n++
 		}
-		bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
-		sa.Name = string(bytes)
+		sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n))
 		return sa, nil
 
 	case AF_INET:
@@ -1034,6 +1122,14 @@ func Connect(fd Handle, sa Sockaddr) (err error) {
 	return connect(fd, ptr, n)
 }
 
+func GetBestInterfaceEx(sa Sockaddr, pdwBestIfIndex *uint32) (err error) {
+	ptr, _, err := sa.sockaddr()
+	if err != nil {
+		return err
+	}
+	return getBestInterfaceEx(ptr, pdwBestIfIndex)
+}
+
 func Getsockname(fd Handle) (sa Sockaddr, err error) {
 	var rsa RawSockaddrAny
 	l := int32(unsafe.Sizeof(rsa))
@@ -1061,9 +1157,13 @@ func Shutdown(fd Handle, how int) (err error) {
 }
 
 func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) {
-	rsa, l, err := to.sockaddr()
-	if err != nil {
-		return err
+	var rsa unsafe.Pointer
+	var l int32
+	if to != nil {
+		rsa, l, err = to.sockaddr()
+		if err != nil {
+			return err
+		}
 	}
 	return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)
 }
@@ -1296,13 +1396,26 @@ func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) {
 func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) {
 	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4)
 }
+
 func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) {
 	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq)))
 }
+
 func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) {
 	return syscall.EWINDOWS
 }
 
+func EnumProcesses(processIds []uint32, bytesReturned *uint32) error {
+	// EnumProcesses syscall expects the size parameter to be in bytes, but the code generated with mksyscall uses
+	// the length of the processIds slice instead. Hence, this wrapper function is added to fix the discrepancy.
+	var p *uint32
+	if len(processIds) > 0 {
+		p = &processIds[0]
+	}
+	size := uint32(len(processIds) * 4)
+	return enumProcesses(p, size, bytesReturned)
+}
+
 func Getpid() (pid int) { return int(GetCurrentProcessId()) }
 
 func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) {
@@ -1562,6 +1675,11 @@ func SetConsoleCursorPosition(console Handle, position Coord) error {
 	return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position))))
 }
 
+func GetStartupInfo(startupInfo *StartupInfo) error {
+	getStartupInfo(startupInfo)
+	return nil
+}
+
 func (s NTStatus) Errno() syscall.Errno {
 	return rtlNtStatusToDosErrorNoTeb(s)
 }
@@ -1585,23 +1703,23 @@ func (s NTStatus) Error() string {
 // do not use NTUnicodeString, and instead UTF16PtrFromString should be used for
 // the more common *uint16 string type.
 func NewNTUnicodeString(s string) (*NTUnicodeString, error) {
-	var u NTUnicodeString
-	s16, err := UTF16PtrFromString(s)
+	s16, err := UTF16FromString(s)
 	if err != nil {
 		return nil, err
 	}
-	RtlInitUnicodeString(&u, s16)
-	return &u, nil
+	n := uint16(len(s16) * 2)
+	return &NTUnicodeString{
+		Length:        n - 2, // subtract 2 bytes for the NULL terminator
+		MaximumLength: n,
+		Buffer:        &s16[0],
+	}, nil
 }
 
 // Slice returns a uint16 slice that aliases the data in the NTUnicodeString.
 func (s *NTUnicodeString) Slice() []uint16 {
-	var slice []uint16
-	hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice))
-	hdr.Data = unsafe.Pointer(s.Buffer)
-	hdr.Len = int(s.Length)
-	hdr.Cap = int(s.MaximumLength)
-	return slice
+	// Note: this rounds the length down, if it happens
+	// to (incorrectly) be odd. Probably safer than rounding up.
+	return unsafe.Slice(s.Buffer, s.MaximumLength/2)[:s.Length/2]
 }
 
 func (s *NTUnicodeString) String() string {
@@ -1624,12 +1742,8 @@ func NewNTString(s string) (*NTString, error) {
 
 // Slice returns a byte slice that aliases the data in the NTString.
 func (s *NTString) Slice() []byte {
-	var slice []byte
-	hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice))
-	hdr.Data = unsafe.Pointer(s.Buffer)
-	hdr.Len = int(s.Length)
-	hdr.Cap = int(s.MaximumLength)
-	return slice
+	slice := unsafe.Slice(s.Buffer, s.MaximumLength)
+	return slice[:s.Length]
 }
 
 func (s *NTString) String() string {
@@ -1681,9 +1795,158 @@ func LoadResourceData(module, resInfo Handle) (data []byte, err error) {
 	if err != nil {
 		return
 	}
-	h := (*unsafeheader.Slice)(unsafe.Pointer(&data))
-	h.Data = unsafe.Pointer(ptr)
-	h.Len = int(size)
-	h.Cap = int(size)
+	data = unsafe.Slice((*byte)(unsafe.Pointer(ptr)), size)
 	return
 }
+
+// PSAPI_WORKING_SET_EX_BLOCK contains extended working set information for a page.
+type PSAPI_WORKING_SET_EX_BLOCK uint64
+
+// Valid returns the validity of this page.
+// If this bit is 1, the subsequent members are valid; otherwise they should be ignored.
+func (b PSAPI_WORKING_SET_EX_BLOCK) Valid() bool {
+	return (b & 1) == 1
+}
+
+// ShareCount is the number of processes that share this page. The maximum value of this member is 7.
+func (b PSAPI_WORKING_SET_EX_BLOCK) ShareCount() uint64 {
+	return b.intField(1, 3)
+}
+
+// Win32Protection is the memory protection attributes of the page. For a list of values, see
+// https://docs.microsoft.com/en-us/windows/win32/memory/memory-protection-constants
+func (b PSAPI_WORKING_SET_EX_BLOCK) Win32Protection() uint64 {
+	return b.intField(4, 11)
+}
+
+// Shared returns the shared status of this page.
+// If this bit is 1, the page can be shared.
+func (b PSAPI_WORKING_SET_EX_BLOCK) Shared() bool {
+	return (b & (1 << 15)) == 1
+}
+
+// Node is the NUMA node. The maximum value of this member is 63.
+func (b PSAPI_WORKING_SET_EX_BLOCK) Node() uint64 {
+	return b.intField(16, 6)
+}
+
+// Locked returns the locked status of this page.
+// If this bit is 1, the virtual page is locked in physical memory.
+func (b PSAPI_WORKING_SET_EX_BLOCK) Locked() bool {
+	return (b & (1 << 22)) == 1
+}
+
+// LargePage returns the large page status of this page.
+// If this bit is 1, the page is a large page.
+func (b PSAPI_WORKING_SET_EX_BLOCK) LargePage() bool {
+	return (b & (1 << 23)) == 1
+}
+
+// Bad returns the bad status of this page.
+// If this bit is 1, the page is has been reported as bad.
+func (b PSAPI_WORKING_SET_EX_BLOCK) Bad() bool {
+	return (b & (1 << 31)) == 1
+}
+
+// intField extracts an integer field in the PSAPI_WORKING_SET_EX_BLOCK union.
+func (b PSAPI_WORKING_SET_EX_BLOCK) intField(start, length int) uint64 {
+	var mask PSAPI_WORKING_SET_EX_BLOCK
+	for pos := start; pos < start+length; pos++ {
+		mask |= (1 << pos)
+	}
+
+	masked := b & mask
+	return uint64(masked >> start)
+}
+
+// PSAPI_WORKING_SET_EX_INFORMATION contains extended working set information for a process.
+type PSAPI_WORKING_SET_EX_INFORMATION struct {
+	// The virtual address.
+	VirtualAddress Pointer
+	// A PSAPI_WORKING_SET_EX_BLOCK union that indicates the attributes of the page at VirtualAddress.
+	VirtualAttributes PSAPI_WORKING_SET_EX_BLOCK
+}
+
+// CreatePseudoConsole creates a windows pseudo console.
+func CreatePseudoConsole(size Coord, in Handle, out Handle, flags uint32, pconsole *Handle) error {
+	// We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only
+	// accept arguments that can be casted to uintptr, and Coord can't.
+	return createPseudoConsole(*((*uint32)(unsafe.Pointer(&size))), in, out, flags, pconsole)
+}
+
+// ResizePseudoConsole resizes the internal buffers of the pseudo console to the width and height specified in `size`.
+func ResizePseudoConsole(pconsole Handle, size Coord) error {
+	// We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only
+	// accept arguments that can be casted to uintptr, and Coord can't.
+	return resizePseudoConsole(pconsole, *((*uint32)(unsafe.Pointer(&size))))
+}
+
+// DCB constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-dcb.
+const (
+	CBR_110    = 110
+	CBR_300    = 300
+	CBR_600    = 600
+	CBR_1200   = 1200
+	CBR_2400   = 2400
+	CBR_4800   = 4800
+	CBR_9600   = 9600
+	CBR_14400  = 14400
+	CBR_19200  = 19200
+	CBR_38400  = 38400
+	CBR_57600  = 57600
+	CBR_115200 = 115200
+	CBR_128000 = 128000
+	CBR_256000 = 256000
+
+	DTR_CONTROL_DISABLE   = 0x00000000
+	DTR_CONTROL_ENABLE    = 0x00000010
+	DTR_CONTROL_HANDSHAKE = 0x00000020
+
+	RTS_CONTROL_DISABLE   = 0x00000000
+	RTS_CONTROL_ENABLE    = 0x00001000
+	RTS_CONTROL_HANDSHAKE = 0x00002000
+	RTS_CONTROL_TOGGLE    = 0x00003000
+
+	NOPARITY    = 0
+	ODDPARITY   = 1
+	EVENPARITY  = 2
+	MARKPARITY  = 3
+	SPACEPARITY = 4
+
+	ONESTOPBIT   = 0
+	ONE5STOPBITS = 1
+	TWOSTOPBITS  = 2
+)
+
+// EscapeCommFunction constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-escapecommfunction.
+const (
+	SETXOFF  = 1
+	SETXON   = 2
+	SETRTS   = 3
+	CLRRTS   = 4
+	SETDTR   = 5
+	CLRDTR   = 6
+	SETBREAK = 8
+	CLRBREAK = 9
+)
+
+// PurgeComm constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-purgecomm.
+const (
+	PURGE_TXABORT = 0x0001
+	PURGE_RXABORT = 0x0002
+	PURGE_TXCLEAR = 0x0004
+	PURGE_RXCLEAR = 0x0008
+)
+
+// SetCommMask constants. See https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-setcommmask.
+const (
+	EV_RXCHAR  = 0x0001
+	EV_RXFLAG  = 0x0002
+	EV_TXEMPTY = 0x0004
+	EV_CTS     = 0x0008
+	EV_DSR     = 0x0010
+	EV_RLSD    = 0x0020
+	EV_BREAK   = 0x0040
+	EV_ERR     = 0x0080
+	EV_RING    = 0x0100
+)