今天做CPS4.0实验时，自带Webinterface安装报错，直接无视，安装WebInterface 5.4。设置完成后，本机客户端登录打开应用正常，其它客户端登录后打开应用报错，如下图：

 

打开应用程序日志，有事件ID为31203的报错，信息如下 ：

The farm <farm name> has been  configured to use launch references, but a launch reference was not  received from the Citrix XML Service. Check that the farm supports  launch references or disable launch reference requests.

检查XML服务正常，端口正常，WebInterface配置正常,最后在CITRIX技术支持网站搜索到如下解决方案：

To use launch references, all the servers in the specified farm must run  XenDesktop or Presentation Server 4.5 or later. Citrix recommends that  all servers in a farm run the same product and version. If  the farm is  running XenApp 4.0, with Feature Pack 1, for UNIX or Presentation Server 4.0 and earlier, ensure that the RequireLaunchReference parameter is set to Off and that OverrideIcaClientname is set to On in the XenApp Web site configuration file, WebInterface.conf.

对照方案，直接把IIS目录对应文件更改后，问题解决。

如果使用PNA客户端，对应PNA目录也需要更改WebInterface.conf文件

附记录消息和事件 Id 查询地址：

http://support.citrix.com/proddocs/topic/web-interface-impington/wi-log-messages-event-ids-hardwick.html

本文转自 sfih 51CTO博客，原文链接:http://blog.51cto.com/dayday/711365