Citrix: Event 333 - Application Popup in Windows 2003 System log

Problem
System Log is full with Application Popup (Event 333) error.

Consequence

You won't be able to lauch any published applications from that server. Sometimes you won't be able to connect to the affected server via RDP also.

Resolution

This issue may occur when the Non Paged Memory or the Paged Pool Memory is temporarily insufficient. The system keeps recording such events until the computer is restarted, or the related hive is unloaded, even though the temporary memory insufficiency stops.

There is a hotfix (WindowsServer2003-KB970054-x86-ENU.exe) available from Microsoft. Download and install that hotfix on the affected server.

Click HERE to download the hotfix.

For more information about event ID 333, click HERE.

Note: To apply this hotfix, the computer must have Windows Server 2003 Service Pack 1 or Service Pack 2 installed.

Check the installation status
After installating hotfix open registry and check the following settings.

Location : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager
Name     : RegistryFlushErrorSubside
Type      : REG_DWORD
Value     : 1 or 2

Note: If you set the value of the RegistryFlushErrorSubside entry to 1, the system only records one event 333 when the temporary memory insufficient occurs. If the value is set to 2, the system triggers a Stop error for diagnostic purpose.

After installing the hotfix you have to restart the server.