现象：重启citrix服务器后，打开发布的相关程序，提示：
ERROR: An error has occurred while connecting to the requested resource
 
查看系统日志：事件类型: 错误
事件来源: Web Interface at c:\inetpub\wwwroot\Citrix\MetaFrame
事件种类: 无
事件 ID: 0
日期:  2010-04-17
事件:  10:51:11
用户:  N/A
计算机: CITRIX
描述:
The MetaFrame servers reported that they are too busy to launch the selected item.  This was reported from the XML Service at address http://CITRIX.   [Log ID: 10bbd340]
直到看到，
MS DTC has started.
Beginning to reload configuration data.
Successfully reloaded configuration data. [Log ID: 46e197a4]
以上日志后，再登陆citrix一切正常！原来是ms dtc未启动的原因！！具体是不是还有其它原因就不知了！