Logging off a Citrix session does not close ArcMap

Description

ArcMap is not being closed immediately when the the Citrix session is terminated.

Cause

This behavior is a known Citrix issue and is referenced by Citrix Document ID: CTX891671.

Solution or Workaround

Warning:
The instructions below include making changes to essential parts of your operating system. It is recommended that you backup your operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary.

Esri cannot guarantee results from incorrect modifications while following these instructions; therefore, use caution and proceed at your own risk.

Note:
Additional applications can be added to the string by entering a list of executable names using a comma and no spaces between them. For example: 

String:ArcMap.exe,ArcCatalog.exe,notepad.exe