diff --git a/windows/path_lite.go b/windows/path_lite.go
index 4a37298..2ebb0d1 100644
--- a/windows/path_lite.go
+++ b/windows/path_lite.go
@@ -2,17 +2,12 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package filepathlite implements a subset of path/filepath,
-// only using packages which may be imported by "os".
-//
-// Tests for these functions are in path/filepath.
-package filepathlite
+package windows
 
 import (
 	"errors"
-	"internal/stringslite"
-	"io/fs"
 	"slices"
+	"strings"
 )
 
 var errInvalidPath = errors.New("invalid path")
@@ -137,41 +132,6 @@ func Clean(path string) string {
 	return FromSlash(out.string())
 }
 
-// IsLocal is filepath.IsLocal.
-func IsLocal(path string) bool {
-	return isLocal(path)
-}
-
-func unixIsLocal(path string) bool {
-	if IsAbs(path) || path == "" {
-		return false
-	}
-	hasDots := false
-	for p := path; p != ""; {
-		var part string
-		part, p, _ = stringslite.Cut(p, "/")
-		if part == "." || part == ".." {
-			hasDots = true
-			break
-		}
-	}
-	if hasDots {
-		path = Clean(path)
-	}
-	if path == ".." || stringslite.HasPrefix(path, "../") {
-		return false
-	}
-	return true
-}
-
-// Localize is filepath.Localize.
-func Localize(path string) (string, error) {
-	if !fs.ValidPath(path) {
-		return "", errInvalidPath
-	}
-	return localize(path)
-}
-
 // ToSlash is filepath.ToSlash.
 func ToSlash(path string) string {
 	if Separator == '/' {
@@ -189,7 +149,7 @@ func FromSlash(path string) string {
 }
 
 func replaceStringByte(s string, old, new byte) string {
-	if stringslite.IndexByte(s, old) == -1 {
+	if strings.IndexByte(s, old) == -1 {
 		return s
 	}
 	n := []byte(s)
diff --git a/windows/path_lite_windowsspecific.go b/windows/path_lite_windowsspecific.go
index 011baa9..23ba2b6 100644
--- a/windows/path_lite_windowsspecific.go
+++ b/windows/path_lite_windowsspecific.go
@@ -2,14 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package filepathlite
-
-import (
-	"internal/bytealg"
-	"internal/stringslite"
-	"internal/syscall/windows"
-	"syscall"
-)
+package windows
 
 const (
 	Separator     = '\\' // OS-specific path separator
@@ -20,159 +13,6 @@ func IsPathSeparator(c uint8) bool {
 	return c == '\\' || c == '/'
 }
 
-func isLocal(path string) bool {
-	if path == "" {
-		return false
-	}
-	if IsPathSeparator(path[0]) {
-		// Path rooted in the current drive.
-		return false
-	}
-	if stringslite.IndexByte(path, ':') >= 0 {
-		// Colons are only valid when marking a drive letter ("C:foo").
-		// Rejecting any path with a colon is conservative but safe.
-		return false
-	}
-	hasDots := false // contains . or .. path elements
-	for p := path; p != ""; {
-		var part string
-		part, p, _ = cutPath(p)
-		if part == "." || part == ".." {
-			hasDots = true
-		}
-		if isReservedName(part) {
-			return false
-		}
-	}
-	if hasDots {
-		path = Clean(path)
-	}
-	if path == ".." || stringslite.HasPrefix(path, `..\`) {
-		return false
-	}
-	return true
-}
-
-func localize(path string) (string, error) {
-	for i := 0; i < len(path); i++ {
-		switch path[i] {
-		case ':', '\\', 0:
-			return "", errInvalidPath
-		}
-	}
-	containsSlash := false
-	for p := path; p != ""; {
-		// Find the next path element.
-		var element string
-		i := bytealg.IndexByteString(p, '/')
-		if i < 0 {
-			element = p
-			p = ""
-		} else {
-			containsSlash = true
-			element = p[:i]
-			p = p[i+1:]
-		}
-		if isReservedName(element) {
-			return "", errInvalidPath
-		}
-	}
-	if containsSlash {
-		// We can't depend on strings, so substitute \ for / manually.
-		buf := []byte(path)
-		for i, b := range buf {
-			if b == '/' {
-				buf[i] = '\\'
-			}
-		}
-		path = string(buf)
-	}
-	return path, nil
-}
-
-// isReservedName reports if name is a Windows reserved device name.
-// It does not detect names with an extension, which are also reserved on some Windows versions.
-//
-// For details, search for PRN in
-// https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file.
-func isReservedName(name string) bool {
-	// Device names can have arbitrary trailing characters following a dot or colon.
-	base := name
-	for i := 0; i < len(base); i++ {
-		switch base[i] {
-		case ':', '.':
-			base = base[:i]
-		}
-	}
-	// Trailing spaces in the last path element are ignored.
-	for len(base) > 0 && base[len(base)-1] == ' ' {
-		base = base[:len(base)-1]
-	}
-	if !isReservedBaseName(base) {
-		return false
-	}
-	if len(base) == len(name) {
-		return true
-	}
-	// The path element is a reserved name with an extension.
-	// Since Windows 11, reserved names with extensions are no
-	// longer reserved. For example, "CON.txt" is a valid file
-	// name. Use RtlIsDosDeviceName_U to see if the name is reserved.
-	p, err := syscall.UTF16PtrFromString(name)
-	if err != nil {
-		return false
-	}
-	return windows.RtlIsDosDeviceName_U(p) > 0
-}
-
-func isReservedBaseName(name string) bool {
-	if len(name) == 3 {
-		switch string([]byte{toUpper(name[0]), toUpper(name[1]), toUpper(name[2])}) {
-		case "CON", "PRN", "AUX", "NUL":
-			return true
-		}
-	}
-	if len(name) >= 4 {
-		switch string([]byte{toUpper(name[0]), toUpper(name[1]), toUpper(name[2])}) {
-		case "COM", "LPT":
-			if len(name) == 4 && '1' <= name[3] && name[3] <= '9' {
-				return true
-			}
-			// Superscript ¹, ², and ³ are considered numbers as well.
-			switch name[3:] {
-			case "\u00b2", "\u00b3", "\u00b9":
-				return true
-			}
-			return false
-		}
-	}
-
-	// Passing CONIN$ or CONOUT$ to CreateFile opens a console handle.
-	// https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea#consoles
-	//
-	// While CONIN$ and CONOUT$ aren't documented as being files,
-	// they behave the same as CON. For example, ./CONIN$ also opens the console input.
-	if len(name) == 6 && name[5] == '$' && equalFold(name, "CONIN$") {
-		return true
-	}
-	if len(name) == 7 && name[6] == '$' && equalFold(name, "CONOUT$") {
-		return true
-	}
-	return false
-}
-
-func equalFold(a, b string) bool {
-	if len(a) != len(b) {
-		return false
-	}
-	for i := 0; i < len(a); i++ {
-		if toUpper(a[i]) != toUpper(b[i]) {
-			return false
-		}
-	}
-	return true
-}
-
 func toUpper(c byte) byte {
 	if 'a' <= c && c <= 'z' {
 		return c - ('a' - 'A')
diff --git a/windows/path_windowsspecific.go b/windows/path_windowsspecific.go
index d0eb42c..40b9315 100644
--- a/windows/path_windowsspecific.go
+++ b/windows/path_windowsspecific.go
@@ -2,71 +2,14 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package filepath
+package windows
 
 import (
 	"os"
 	"strings"
-	"syscall"
 )
 
-// HasPrefix exists for historical compatibility and should not be used.
-//
-// Deprecated: HasPrefix does not respect path boundaries and
-// does not ignore case when required.
-func HasPrefix(p, prefix string) bool {
-	if strings.HasPrefix(p, prefix) {
-		return true
-	}
-	return strings.HasPrefix(strings.ToLower(p), strings.ToLower(prefix))
-}
-
-func splitList(path string) []string {
-	// The same implementation is used in LookPath in os/exec;
-	// consider changing os/exec when changing this.
-
-	if path == "" {
-		return []string{}
-	}
-
-	// Split path, respecting but preserving quotes.
-	list := []string{}
-	start := 0
-	quo := false
-	for i := 0; i < len(path); i++ {
-		switch c := path[i]; {
-		case c == '"':
-			quo = !quo
-		case c == ListSeparator && !quo:
-			list = append(list, path[start:i])
-			start = i + 1
-		}
-	}
-	list = append(list, path[start:])
-
-	// Remove quotes.
-	for i, s := range list {
-		list[i] = strings.ReplaceAll(s, `"`, ``)
-	}
-
-	return list
-}
-
-func abs(path string) (string, error) {
-	if path == "" {
-		// syscall.FullPath returns an error on empty path, because it's not a valid path.
-		// To implement Abs behavior of returning working directory on empty string input,
-		// special-case empty path by changing it to "." path. See golang.org/issue/24441.
-		path = "."
-	}
-	fullPath, err := syscall.FullPath(path)
-	if err != nil {
-		return "", err
-	}
-	return Clean(fullPath), nil
-}
-
-func join(elem []string) string {
+func Join(elem ...string) string {
 	var b strings.Builder
 	var lastChar byte
 	for _, e := range elem {
@@ -112,7 +55,3 @@ func join(elem []string) string {
 	}
 	return Clean(b.String())
 }
-
-func sameWord(a, b string) bool {
-	return strings.EqualFold(a, b)
-}