This article was previously published under Q259773
This article has been archived. It is offered "as is" and will no longer be updated.
If a Windows NT 4.0-based server attempts to use a local procedure call and the server process responds by using an NtReplyPort function call instead of the NtAcceptConnectPort and NtCompletePort function calls, the server may stop responding (hang) and the following error message may appear on a blue screen:
Stop 0x00000050 PAGE_FAULT_IN_NONPAGED_AREA
Windows NT 4.0
To resolve this problem, obtain the Windows NT 4.0 Security Rollup Package. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
299444 Post-Windows NT 4.0 Service Pack 6a Security Rollup Package (SRP)
The English version of this fix should have the following file attributes or later:
Date Time Size File name Platform ------------------------------------------------------- 04/25/00 04:57p 954,176 Ntkrnlmp.exe Intel 04/25/00 04:57p 933,760 Ntoskrnl.exe Intel 04/25/00 04:56p 1,401,728 Ntkrnlmp.exe Alpha 04/25/00 04:56p 1,373,632 Ntoskrnl.exe Alpha
Microsoft Windows NT Server version 4.0, Terminal Server Edition
To resolve this problem, obtain the Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package (SRP). For additional information about the SRP, click the article number below to view the article in the Microsoft Knowledge Base:
317636 Windows NT Server 4.0, Terminal Server Edition, Security Rollup Package
Microsoft has confirmed that this problem may cause a degree of security vulnerability in Windows NT 4.0.
For more information on this vulnerability, see the following Microsoft Web site: