if e != nil {
		return "", e
	}
	defer syscall.NetApiBufferFree(p)
	i := (*syscall.UserInfo10)(unsafe.Pointer(p))
	return windows.UTF16PtrToString(i.FullName), nil
}

func lookupFullName(domain, username, domainAndUser string) (string, error) {
	joined, err := isDomainJoined()
	if err == nil && joined {
		name, err := lookupFullNameDomain(domainAndUser)
		if err == nil {
			return name, nil
		}
	}