// load system DLLs.
func LoadDLL(name string) (*DLL, error) {
	namep, err := UTF16PtrFromString(name)
	if err != nil {
		return nil, err
	}
	var h uintptr
	var e Errno
	if sysdll.IsSystemDLL[name] {
		h, e = loadsystemlibrary(namep)
	} else {
		h, e = loadlibrary(namep)
	}
	if e != 0 {
		return nil, &DLLError{
			Err:     e,
			ObjName: name,