public static DateTime PasswordExpireTime(string domainOrMachineName, string userName)
{
using (var directoryEntry = new System.DirectoryServices.DirectoryEntry("WinNT://" + domainOrMachineName + '/' + userName + ",user"))
{
try
{
return (DateTime)directoryEntry.InvokeGet("PasswordExpirationDate");
}
catch (TargetInvocationException e)
{
throw e.InnerException;
}
}
}