/// 禁用指定
///
///
public static void disableuser(directoryentry de)
{
impersonate.beginimpersonate();
de.properties["useraccountcontrol"][0]=adhelper.ads_user_flag_enum.ads_uf_normal_account | adhelper.ads_user_flag_enum.ads_uf_dont_expire_passwd | adhelper.ads_user_flag_enum.ads_uf_accountdisable;
de.commitchanges();
impersonate.stopimpersonate();
de.close();