XCLN: Error Message: The Command You Specified Could Not Be Carried Out

When you start the Microsoft Exchange Client, you may encounter the following error message:

The error message occurs under the following conditions.

You are using a system with Microsoft Exchange Client and then upgrade to Outlook 2000. Later, you uninstall Outlook 2000 and use the Exchange Client only. The error message occurs because while you were uninstalling Outlook 2000, the Frmcache.dat file that was in use with Outlook 2000 is not removed, and the original Frmcache.bak file is not renamed Frmcache.dat. This causes the Exchange Client to be unable to call correctly-cached messaging form information.

After you uninstall Outlook 2000, do either of the following:

�	Rename the Frmcache.bak file to Frmcache.dat, then double-click the Mlset32 file in the Program Files\Microsoft Exchange folder to reregister the Exchange Client in the registry. -or-
�	Manually delete the Frmcache.dat file, and then reinstall the Exchange Client software from the original CD.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

For additional information on resetting the Frmcache.dat file, click the article number below to view the article in the Microsoft Knowledge Base: