WOW Leak Launching Many Instances of a 16-Bit Application (186495)
The information in this article applies to:
- Microsoft Windows NT Server 4.0 Terminal Server Edition
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Server, Enterprise Edition 4.0
This article was previously published under Q186495 SYMPTOMS
In cases where 16-bit applications are launched repeatedly in separate
Virtual DOS Machines (VDMs), system resources may be depleted because of a
WOW memory leak. Symptoms of the leak condition will be popup errors
messages indicating "low virtual memory" and potential system crashes if
memory resources are severely depleted over a long period of time. The
problem can be recognized by monitoring MemUsage under Windows NT Task
Manager or by running Performance Monitor using the following counters:
Object: Process
Counter: Handle count and Private Bytes
Instance: csrss
CAUSE
There is a memory leak in Wow32.dll and Winbase.dll.
RESOLUTIONTo resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
STATUSMicrosoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
| Modification Type: | Minor | Last Reviewed: | 9/23/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbfix kbQFE KB186495 |
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