DOCUMENT:Q234671  22-JUN-2001  [exchange]
TITLE   :XWEB: IIS May Not Work When OWA Is Being Heavily Accessed
PRODUCT :Microsoft Exchange
PROD/VER:WINDOWS:5.5; winnt:4.0
OPER/SYS:
KEYWORDS:EXC55SP3Fix

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The information in this article applies to:

 - Microsoft Internet Information Server 4.0 
 - Microsoft Outlook Web Access, version 5.5 Service Packs 1, 2, 3 
 - Microsoft Exchange Server, version 5.5 
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SYMPTOMS
========

It is possible that when Outlook Web Access (OWA) is being heavily used the CDO
component may fail in Internet Information Server (IIS). The symptoms may vary
including Dr. Watson messages and messages reporting that IIS is no longer
responding or accepting client requests.

WORKAROUND
==========

Restart IIS for continued normal operation.

RESOLUTION
==========

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

   Q191014 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: OWA

+---------------------------+
| File name    | Version    | 
+---------------------------+
| Emsmdb32.dll | 5.5.2639.0 | 
+---------------------------+


STATUS
======

Microsoft has confirmed this to be a problem in the OWA component of Microsoft
Exchange Server 5.5. This problem was first corrected in Exchange Server 5.5
Service Pack 3.

Additional query words:

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Keywords          : EXC55SP3Fix 
Technology        : kbOutlookSearch kbiisSearch kbiis400 kbOWASearch kbOWA550SP1 kbOWA550SP2 kbOWA550SP3
Version           : WINDOWS:5.5; winnt:4.0
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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