Microsoft KB Archive/184744

= DHCP Server Leaks Registry Quota on Alpha Version of Windows NT =

Article ID: 184744

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q184744



SYMPTOMS
A DHCP server running on an Alpha server causes Registry Quota to be leaked over time. This may result in degraded system performance or the following STOP error message:

Stop 0xc000021a e17c7fc8 00000000 00000000



CAUSE
This issue only occurs on Alpha versions of Windows NT 4.0 with DHCP server installed. The problem is caused by allocating more memory than is deallocate when saving registry keys. DHCP server periodically leaks Registry Quota during normal operation, approximately .065 KB every 10 minutes using PerfMon statistics. This problem is amplified by repeatedly starting and stopping the DHCP service. The service was found to have 2 leaks, each leaking 2 KB every time the service was started and stopped.



RESOLUTION
To 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



STATUS
Microsoft 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.

Additional query words: registry memory leak

Keywords: kbbug kbfix KB184744

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