Office 2003 will not uninstall after upgrading to Office 2007

[David]

I recently upgraded from Office 2003 Standard Edition to Office 2007
Ultimate. I have been trying to uninstall it from Control Panel - Add/Remove
Programs. It will not uninstall, and I keep getting a error message that
reads "This patch package could not be opened. Verify that the patch package
exists and that you can access it, or contact the applications vendor to
verify that this is a valid Windows Installer patch package." Does anyone
have an idea of what the issue could be?

Thanks

 

[TXGuy]

After a successful upgrade, Office 2003 should not even be displayed in the
Programs area of Control Panel - unless it contains applications that aren't
included in the newer version - but as you went from Standard 2003 to
Ultimate 2007, that should not be the case. You most likely have some
remaining cached .msp's and/or registry settings. I'd go with the Installer
Cleanup:

290301 Description of the Windows Installer CleanUp Utility
http://support.microsoft.com/kb/290301