Heads up Citrix users

Heads up if you use XenDesktop 5 or XenApp 6.

If you get the error “An error occurred while making the requested connection” when trying to connect through web interface running Xendesktop 5 or XenApp 6 the issue could be a Microsoft patch.  We just ran into this issue with XenDesktop 5.

This is the patch http://support.microsoft.com/kb/2286198 that wreaks havoc.

Here is a forum article related to the issue http://forums.citrix.com/thread.jspa?threadID=271745&start=15&tstart=0

You will also get the following errors or similar in the event log

Log Name:      Application

Source:        Citrix Web Interface
Date:          9/30/2010 8:49:17 AM
Event ID:      30024
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      ftlvxa5x86.adolfolab.ctx
Site path: C:inetpubwwwrootCitrixAG5.

The XML document sent by the Citrix servers could not be processed because it contains invalid XML. This message was reported from the XML Service at addresshttp://localhost:80/scripts/wpnbr.dll [com.citrix.xml.NFuseProtocol.RequestLaunchRef]. The specified Citrix XML Service could not be contacted and has been temporarily removed from the list of active services. [Unique Log ID: e28daedd]

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