Try looking up this Citrix Article:- CTX891671 It contains details of a function in citrix known as "LogoffCheckSysModules" I had a similar problem with this and a proprietary application, but it should also work with the wfshell process.. Regards Jaime www.polyco.co.uk -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Charles Watts Sent: 20 October 2005 14:53 To: thin@xxxxxxxxxxxxx Subject: [THIN] wfshell.exe We are now tersting MPS 4.0 on Win2k3 and have applied the latest fixex from Citrix on the server. The problem we are seeing is that when a user logs off wfshell.exe is hanging and the only way to get it to log off is to kill wfshell.exe. Has one seen this? Any ideas? Thanks, Greg Watts Systems Engineer GTSI Corp. 3901 Stonecroft Blvd. Chantilly, VA 20151 Office: (202) 231-8055 Mobile: (410) 274-3076 Fax: (815) 366-8281 greg.watts@xxxxxxxx ******************************************************** This Weeks Sponsor: Cesura, Inc. Know about Citrix end-user slowdowns before they know. Know the probable cause, immediately. Know it all now with this free white paper. http://www.cesurasolutions.com/landing/WPBCForCitrix.htm?mc=TBCC ******************************************************** Useful Thin Client Computing Links are available at: http://thin.net/links.cfm ThinWiki community - Excellent SBC Search Capabilities! http://www.thinwiki.com *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thin.net/citrixlist.cfm ******************************************************** This Weeks Sponsor: Cesura, Inc. Know about Citrix end-user slowdowns before they know. Know the probable cause, immediately. Know it all now with this free white paper. http://www.cesurasolutions.com/landing/WPBCForCitrix.htm?mc=WETBCC ******************************************************** Useful Thin Client Computing Links are available at: http://thin.net/links.cfm ThinWiki community - Excellent SBC Search Capabilities! http://www.thinwiki.com *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thin.net/citrixlist.cfm