Yes. This also causes the Citrix improved logon feedback messages to not appear (the server side logon feedback messages). I have a case open with Microsoft and they have reproduce it in house. The problem is that it is looking for a newer version of an assembly manifest that is not available on the system and is not included with the hotfix. _____ From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of M Sent: Tuesday, December 06, 2005 4:04 PM To: Thin@xxxxxxxxxxxxx Subject: [THIN] Event log messages after installing KB908011 Hello there, Ive recently been preparing my Automated 2003 SP1 PS4 Builds and have requested the following hotfix from MS KB908011 This is the one that allows you to use Mandatory profiles properly. Is anyone else using this fix and now seeing 3 event log messages ? I am getting the following event log messages whenever i log in via RDP sessions. Event ID 32s and 59s Typical messages "Source: SideBySide Generate Activation Context failed for N:\WINDOWS\system32\winlogon.exe. Reference error message: The referenced assembly is not installed on your system" and "Resolve Partial Assembly failed for Microsoft.Windows.SystemCompatible. Reference error message: The referenced assembly is not installed on your system" and Dependent Assembly Microsoft.Windows.SystemCompatible could not be found and Last Error was The referenced assembly is not installed on your system.