Microsoft KB Archive/174031

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XADM: Unable to Uninstall Active Server Components from Exchange

Article ID: 174031

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.0 Standard Edition
  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q174031


IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.

When you attempt to uninstall the Active Server Components from Microsoft Exchange Server Setup, the check box is dimmed or unavailable. Or you may receive the following error message:

Could not remove the file named: c:\exchsrvr\bin\AMHTML.DLL. It is in use by another application.


The errors occur because the Active Server components have been improperly uninstalled, or the Webdata directory or some of its components have been deleted.


WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows NT. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it.

To resolve this issue, use the following steps:

  1. Start Registry Editor (Regedit.exe) and locate the following subkey:

  2. Select Web Connector, click Delete on the Edit menu, and then click Yes in the Confirm Value Delete dialog box.
  3. Exit Registry Editor.
  4. Start Exchange setup and remove the Active Server Components from the Add/Remove dialog.

Keywords: kbprb KB174031