Microsoft KB Archive/271794

= Access Violation Error Message in RPCSS with Endpoint Mapper RPC Requests =

Article ID: 271794

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q271794



SYMPTOMS
If you are running RPC-server programs that communicate with their clients over TCP and/or UDP and you are using dynamic endpoints while under load and experiencing network problems, you may receive an access violation error message in Rpcss.exe. When this occurs, you may need to restart the server to work around this problem.



CAUSE
This problem can occur because when information that is stored for datagram RPC requests is freed, an invalid pointer is freed that causes the access violation error message.



RESOLUTION
A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

  Date        Time    Version        Size     File name    Platform -  03/21/2001  08:19p  4.0.1381.7095  602,896  Rpcrt4.dll   Alpha 03/21/2001 08:23p  4.0.1381.7095  343,312  Rpcrt4.dll   Intel



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0.

Keywords: kbhotfixserver kbqfe kbbug kbenv kberrmsg kbfix kbnetwork KB271794

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