LKBEN10862: Howto know if desktop heap size allocation failed?


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LKB | Created: 02/04/2020 | Version: 0 | Language: EN | Rating: 0 | Outdated: False | Marked for deletion: False

Author: Wim Peeters - Keskon GmbH & Co. KG


Symptom

You would like to know if desktop heap exhaustion is the cause of your problems on terminal server. (with or without citrix)

Cause

none

Solution

Check if the following key has been set in your registry.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
Value name: DesktopHeapLogging
Value data: 1
Type: REG_DWORD

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
Date: date
Time: time
User: N/A
Computer: server name
Description:
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.

Disclaimer:

The information provided in this document is intended for your information only. Lubby makes no claims to the validity of this information. Use of this information is at own risk!