根据用户名判断是否是管理员

BOOL IsUserAdminPrivilege(const CString& strUserName, BOOL& bAdminPrivilege)   
{     
	DWORD rc;
	USER_INFO_1 *info;

	rc = NetUserGetInfo( NULL, strUserName, 1, (byte **) &info );
	if ( rc != NERR_Success )
		return false;

	bAdminPrivilege = info->usri1_priv == USER_PRIV_ADMIN;

	NetApiBufferFree( info );
	return rc == NERR_Success;  
}