Citrix states in their article: CTX106699

CTX106699 - Application Fails to Launch Properly After Installing Citrix Presentation Server 4.0

This document was published at: http://support.citrix.com/article/CTX106699

Document ID: CTX106699, Created on: Sep 7, 2005, Updated: Apr 7, 2006

Products: Citrix Presentation Server 4.0 for Microsoft Windows 2003, Citrix Presentation Server 4.0 for Microsoft Windows 2000

Symptoms

An application fails to run properly after installing Citrix Presentation Server 4.0. The following was observed:

• Upgraded server to Presentation Server 4.0

• Virtual Memory Optimization feature is enabled

• Application was working properly in a previous version of Presentation Server

• Application works properly when IMA Service is stopped

• Application fails at the server console when IMA Service is running

Resolution 1

Caution! This fix requires you to edit the registry. Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Citrix cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. Be sure to back up the registry before you edit it.

Q: What if an application is affected by the Virtual Memory Optimization feature?

If an application is not functioning correctly after being optimized by this feature, it can be placed on the application exclusion list. The exclusion list is located in the Presentation Server Console under the farm properties in the Memory Optimization section. All applications placed on the exclusion list will be in the registry of each server under HKEY_LOCAL_MACHINE\ SOFTWARE\ Citrix\ SFO or . If you do not want to have the feature optimize a particular application it can also be placed on this list.

Q: Is there a list of applications that will not work with this feature?

While there may be other applications that do not work with this feature, the default exclusion list contains all known applications and DLLs that have been problematic in the past. This default exclusion list is in the registry location mentioned above.

Q: Are there are types of applications that this feature is not designed to work with?

Yes. Applications that have digitally signed components, applications whose DLLs are protected by Windows Rights Management, and any application whose executable programmatically checks the DLL after it has been loaded.

Q: Why are DLLs not excluded from the Memory Optimization when they are added to the exclusion list of the Presentation Server Console?

The Presentation Server Console was designed to only exclude executables, not DLLs.

You can add DLLs manually to the ComponentExclusionList in the registry:

HKEY_LOCAL_MACHINE\ SOFTWARE\ Citrix\ SFO

Resolution 2

RTO Software offers the Optimization Console to monitor and configure the application optimization in Citrix Presentation Server 4.0. The RTO Optimization Console is free for use when managing a local Citrix Presentation Server. To manage multiple servers, the Professional Edition requires a license from RTO Software.

This product allows you to:

• View and report application optimization results

• Exclude optimizations by application for the server

• Exclude optimizations by DLL for the server

• Report optimization history

• Turn on / off optimizations

• Diagnose applications to determine the specific resources for exclusion

Additional information or product download of the Optimization Console can be found on the RTO Software site or by clicking on the following link: http://www.rtosoft.com/enter.asp?ID=386.

Additional Information

For more information on the Virtual Memory Optimization feature, refer to CTX106023 – Virtual Memory Optimization Feature or the Citrix Presentation Server 4.0 Administrator’s Guide.