ad中判断用户帐号是否被锁定的方法（仅限于WIN2003）

//user is a DirectoryEntry for our user account
 
string attrib = 
  "msDS-User-Account-Control-Computed";
 
//this is a constructed attrib
user.RefreshCache(new string[]{attrib});
 
const int UF_LOCKOUT = 0x0010;
 
int flags = 
  (int)user.Properties[attrib].Value;
 
if (Convert.ToBoolean(flags & UF_LOCKOUT))
{
  Console.WriteLine(
    "{0} is locked out",
    user.Name
    );
}