You would like to know if desktop heap exhaustion is the cause of your problems on terminal server. (with or without citrix)
Check if the following key has been set in your registry.
Value name: DesktopHeapLogging
Value data: 1
Now you can check in your eventlog (eventvwr) for the warning ID 243 in the system tree.
Event Type: Warning
Event Source: Win32k
Event Category: None
Event ID: 243
Computer: server name
A desktop heap allocation failed.
Please note that this event will only be logged once during a session!
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.