Microsoft KB Archive/198548

= XWEB: OWA Causes an Access Violation in MAPI =

Article ID: 198548

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q198548





SYMPTOMS
When you use Outlook Web Access (OWA) on a separate computer to access the Microsoft Exchange Server computer, an access violation may occur. The access violation may result in a Dr. Watson with the following information in the file Drwtsn32.log:   Microsoft (R) Windows NT (TM) Version 4.00 DrWtsn32 Copyright (C) 1985-1996 Microsoft Corp. All rights reserved.

Application exception occurred: App: exe\inetinfo.dbg (pid=144) When: 11/8/1998 @ 22:36:8.750 Exception number: c0000005 (access violation) Below is the thread that displays the fault. Please note that the thread information below was seen on an Alpha platform, however, the problem exists in both the x86 and Alpha builds of OWA.   function: MAPILogonX 6fb230d0: b02b0058 stl    t0,58(s2) 6fb230d4: b00a0000 stl    v0,0(s1) 6fb230d8: a06b0000 ldl    t2,0(s2) 6fb230dc: 40603003 addl   t2,#1,t2 6fb230e0: b06b0000 stl    t2,0(s2) 6fb230e4: 25df6fa9 ldah   s5,6fa9(zero) 6fb230e8: a0be00a4 ldl    t4,a4(sp) 6fb230ec: a09e0070 ldl    t3,70(sp) 6fb230f0: a0c50000 ldl    t5,0(t4) 6fb230f4: a0840054 ldl    t3,54(t3) FAULT ->6fb230f8: a10b000c ldl    t7,c(s2) 6fb230fc: a21e0098 ldl    a0,98(sp) 6fb23100: a23e0080 ldl    a1,80(sp) 6fb23104: a13e0078 ldl    s0,78(sp) 6fb23108: 46011010 and    a0,#8,a0 6fb2310c: 40c40004 addl   t5,t3,t3 6fb23110: b09e00a8 stl    t3,a8(sp) 6fb23114: e560002d beq    s2,6fb231cc  MAPILogonX+acc 6fb23118: f500002c bne    t7,6fb231cc  MAPILogonX+acc 6fb2311c: e600002b beq    a0,6fb231cc  MAPILogonX+acc 6fb23120: a00e28c0 ldl    v0,28c0(s5) 6fb23124: a2110064 ldl    a0,64(a1)

*> Stack Back Trace <*

FramePtr ReturnAd Param#1 Param#2  Param#3  Param#4  Function Name 039ded10 6fb226a0 00000000 00000000 815c06f4 00000000 mapi32!MAPILogonX 039dee00 6f08edc4 066a6864 815c06f4 815c06f4 00000000 mapi32!MAPILogonEx 039dee50 6f08db04 066a6864 00000000 815c06f4 00000000 cdo!CSession::M_ScDo_Logon 039def20 066a761c 066a6864 00000000 815c06f4 00000000 cdo!CSession::V_HrInvoke 039dedc0 066a7620 066a6864 00000000 815c06f4 00000000 039dedc0 00000000 066a6864 00000000 815c06f4 00000000



CAUSE
A function call to a member of psprof, in MapiLogonX, was made outside of a NULL check statement. In the case above, psprof was null, hence an access violation occurred.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

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

File Name   Version -  Mapi32.dll   5.5.2503



STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Additional query words: Dr Watson

Keywords: kbqfe kbhotfixserver kbbug kbfix KB198548

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