globAll := filepath.Clean(dirPath) + `\*`
	globAllP, err := syscall.UTF16PtrFromString(globAll)
	if err != nil {
		return errInvalidArgument
	}
	data := &syscall.Win32finddata{}
	handle, err := syscall.FindFirstFile(globAllP, data)
	if err != nil {
		if err = syscallErrToFileErr(dirPath, err); err == errFileNotFound {
			return nil
		}
		return err
	}
	defer syscall.FindClose(handle)

pkg syscall (windows-386), func Fchmod(Handle, uint32) error
pkg syscall (windows-386), func Fchown(Handle, int, int) error
pkg syscall (windows-386), func FindClose(Handle) error
pkg syscall (windows-386), func FindFirstFile(*uint16, *Win32finddata) (Handle, error)
pkg syscall (windows-386), func FindNextFile(Handle, *Win32finddata) error
pkg syscall (windows-386), func FlushFileBuffers(Handle) error