Microsoft KB Archive/194820

= XADM: Cannot Install 5.5 After Internet Explorer 4.01 SP1 =

Article ID: 194820

Article Last Modified on 3/30/2004

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q194820





SYMPTOMS
When you attempt to install Microsoft Exchange Server 5.5 on an Exchange Server 5.0 computer on which the Internet Mail Service is installed and Microsoft Internet Explorer 4.01 Service Pack 1 (SP1) with Outlook Express has been applied, the following error message may be displayed, and the installation process may not complete successfully:

Self registration of the DLL c:\winnt\system32\inetcomm.dll failed.



CAUSE
When you install Exchange Server 5.5 on an Exchange Server 5.0 computer on which the Internet Mail Service is installed, the Setup program attempts to register the Inetcomm.dll file. During this registration process, the Inetcomm.dll file attempts to load the Msoert.dll file.

When you apply Internet Explorer 4.01 SP1 with Outlook Express, new versions of the Inetcomm.dll and Msoert.dll files are copied to your hard disk. When the Exchange Server 5.5 Setup program attempts to register the Inetcomm.dll file, it uses the new version of the Inetcomm.dll file on your hard disk. However, when the Inetcomm.dll file attempts to load the Msoert.dll file, it uses the older version of the Msoert.dll file on the Exchange Server 5.5 CD-ROM. This file mismatch prevents the Inetcomm.dll file from being registered.



WORKAROUND
To work around this problem, replace the Inetcomm.dll and Msoert.dll files that were copied to your hard disk when you applied Internet Explorer 4.01 SP1 with the versions of the files on the Exchange Server 5.5 CD-ROM. Then, install Exchange Server 5.5. After Exchange Server 5.5 has been installed, replace the Inetcomm.dll and Msoert.dll files from the Exchange Server 5.5 CD-ROM with the versions of the files that were copied to your hard disk when you applied Internet Explorer 4.01 SP1.

To do so, follow these steps:


 * 1) Rename the Inetcomm.dll and Msoert.dll files in the Winnt\System32 folder on your hard disk to Inetcomm.new and Msoert.new.
 * 2) Copy the Inetcomm.dll and Msoert.dll files from the Exchange Server 5.5 CD-ROM to the Winnt\System32 folder on your hard disk.
 * 3) Install Exchange Server 5.5.
 * 4) Rename the Inetcomm.dll and Msoert.dll files in the Winnt\System32 folder on your hard disk to Inetcomm.old and Msoert.old.
 * 5) Rename the Inetcomm.new and Msoert.new files in the Winnt\System32 folder on your hard disk to Inetcomm.dll and Msoert.dll.



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

Additional query words: ims internet mail connector upgrade imc

Keywords: kbbug kbnofix KB194820

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