Access Violations in Rasphone.exe when Searching the Registry

 Last reviewed: January 13, 1998
Article ID: Q172805
The information in this article applies to:
  • Microsoft Windows NT Server version 4.0
  • Microsoft Routing and Remote Access Service Update for Windows NT Server 4.0

SYMPTOMS

A computer running Windows NT Server 4.0 and Routing and Remote Access Service (RRAS) may fail when starting Rasphone.exe. The following error message appears: 

   An application error has occurred
   and an application log is being generated.
   RASPHONE.EXE
   Exception: access violation (0xC0000005, Address 0x0100342c)
In addition, if Drwtsn32.exe is set up to create a Drwtsn32.log, the following text will appear in the log: 

   Application exception occurred:
        App: exe\rasphone.dbg (pid=169)
        When: 8/15/1997 @ 9:10:9.725
        Exception number: c0000005 (access violation)
NOTE: The address and PID you have may differ from those in the example. nc efl=00000202

CAUSE

The GetCallbackList function checks the registry for keys named Callback. It then reads the callback device name, callback port, and callback number from that key. If the key is not in the proper format, Rasphone.exe may fail with an access violation.

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

  1. Start Registry Editor and locate the following Registry subkey in the HKEY_CURRENT_USER subtree: 

          \Software\Microsoft\RAS Phonebook\Callback

  2. Remove any keys that are not in the form of DEVICE_NAME (PORT). 
Keywords          : NTRAS ntrouter NTSrv kberrmsg kbnetwork
Version           : WinNT:4.0
Platform          : winnt
Hardware          : ALPHA PPC x86
Issue type        : kbprb
Solution Type     : kbwontfix

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Last reviewed: January 13, 1998
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