Microsoft KB Archive/192274

= XADM: IIS Crashes with ActiveX Component Using MAPI =

Article ID: 192274

Article Last Modified on 10/28/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition
 * Microsoft Exchange Server 5.5 Service Pack 1

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This article was previously published under Q192274





SYMPTOMS
When you create an ActiveX in-process (DLL) component using MAPI, and use it on an Active Server Pages (ASP) with Collaboration Data Objects (CDO), the Internet Information Server (IIS) may terminate unexpectedly if two or more sessions are created by different user accounts.



CAUSE
The Emsmdb32.dll file fails to get global instance for the session when in- process components share the global instance with CDO. This causes the IIS to close.



WORKAROUND
To work around this problem, create the ActiveX component as out-of-process (EXE) or don't use CDO to access Exchange Server.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For more information, please see the following article in the Microsoft Knowledge Base:

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



MORE INFORMATION
The Drwtsn32.log file may show a failure similar to the following. (Note especially the function names listed on the stack back trace.)   Application exception occurred: App: exe\inetinfo.dbg (pid=209) When: 8/19/1998 @ 11:9:9.717 Exception number: c0000005 (access violation)

State Dump for Thread ID 0x7e

eax=00000000 ebx=00000000 ecx=00000000 edx=00000000 esi=01fdf7b4 edi=043effbc eip=6f8d2b92 esp=043efe84 ebp=00000000 iopl=0     nv up ei pl zr na po      nc   cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000 efl=00000246

function: EcReceiveDatagrams 6f8d2b70 85c0            test    eax,eax 6f8d2b72 750f            jnz     EcReceiveDatagrams+0xb3 (6f8d2b83) 6f8d2b74 ff157c108c6f                        ds:6f8c107c=7000178e call   dword ptr [_imp__GetLastError (6f8c107c)] 6f8d2b7a 89442418        mov     [esp+0x18],eax ss:05dae88b=???????? 6f8d2b7e e92b010000      jmp     EcReceiveDatagrams+0x1de (6f8d2cae) 6f8d2b83 b941000000      mov     ecx,0x41 6f8d2b88 33c0            xor     eax,eax 6f8d2b8a 8d7c2434        lea     edi,[esp+0x34] ss:05dae88b=???????? 6f8d2b8e 33d2            xor     edx,edx 6f8d2b90 f3ab            rep     stosd es:043effbc=70004f4b FAULT ->6f8d2b92 8b4364          mov     eax,[ebx+0x64] ds:019bea06=???????? 6f8d2b95 89542434        mov     [esp+0x34],edx ss:05dae88b=???????? 6f8d2b99 3bc5            cmp     eax,ebp 6f8d2b9b 7e46            jle     EcReceiveDatagrams+0x113 (6f8d2be3) 6f8d2b9d 33ff            xor     edi,edi 6f8d2b9f 8be8            mov     ebp,eax 6f8d2ba1 33c0            xor     eax,eax 6f8d2ba3 85d2            test    edx,edx 6f8d2ba5 7617            jbe     EcReceiveDatagrams+0xee (6f8d2bbe) 6f8d2ba7 8b4b68          mov     ecx,[ebx+0x68] ds:019bea06=???????? 6f8d2baa 8b743910        mov     esi,[ecx+edi+0x10] ds:05dae9c3=???????? 6f8d2bae 8d4c2438        lea     ecx,[esp+0x38] ss:05dae88b=????????


 * > Stack Back Trace <*

FramePtr RetAddr   Param1   Param2   Param3   Function Name 043effb8 70004f4b  01fdf7b4 00000000 00000000 EMSMDB32!EcReceiveDatagrams+0xc2 043effc4 00000000  01fdf7b4 c0000005 043effc4 KERNEL32!BaseThreadStart+0x51



STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server version 5.5.

Additional query words: Exception Fault Ppcg Qfe

Keywords: kbqfe kbhotfixserver kbbug kbfix KB192274

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