XADM: Event Service with Internet Explorer 4.01 Hangs NT Shell (Explorer.exe)

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This article was previously published under Q192066

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SYMPTOMS

When you right-click the Internet Explorer icon on the desktop, select Properties, and click OK, the Windows NT logon shell (Explorer.exe) hangs. This happens when you have Internet Explorer 4.01 and Exchange Server build 1960 (or later) installed on a clean Windows NT Server 4.0 with Service Pack 3.

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CAUSE

Explorer.exe sends a windows broadcast message to all top-level windows awaiting response. In the Exchange Server event service, the broadcast message is missed by one of the COM threads and another thread is performing "if (Peek..." instead of "while(Peek," missing the message completely, which results in Internet Explorer hanging.

For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

136885 (http://support.microsoft.com/kb/136885/EN-US/ ) INFO: OLE Threads Must Dispatch Messages

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RESOLUTION

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

191014 (http://support.microsoft.com/kb/191014/EN-US/ ) XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

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STATUS

Microsoft has confirmed that this is a problem in Exchange Server 5.5.

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APPLIES TO

Microsoft Exchange Server 5.5 Standard Edition

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kbbug kbfix kbqfe KB192066

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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