php连接ms sqlserver提示错误，大家帮看看

[jerryleeee]

$db=mssql_connect("ABCDEF-29TBNNEG","Administrator","822353*") or die("数据库连接失败");

提示：
Warning: mssql_connect(): message: 用户 'ABCDEF-29TBNNEG\IUSR_ABCDEF-29TBNNEG' 登录失败。 (severity 14) in c:\inetpub\wwwroot\sqtemp.php on line 10

Warning: mssql_connect(): Unable to connect to server: ABCDEF-29TBNNEG in c:\inetpub\wwwroot\sqtemp.php on line 10
数据库连接失败

是那个的问题，请大家给个提示，谢谢