I have created numerous Setup projects with Visual Studio 2005. I have
a current solution that is fairly complex with numerous projects. It
contains two primary applications so there are two setup projects. The
setup project for the first application works fine, it removes the
previous version automatically just fine as long as I have incremented
the Version property. But the more recent Setup project for the second
application refuses to remove the previous version. All properties
related to this feature are identical. DetectNewerInstallation is
True. RemovePreviousVersion is True. I increment the Version and it
asks me if I want to update the ProductCode and I always answer Yes.
Install the app, go to AddRemove programs and now there are two
versions installed, both the previous one and the new one.

I have done web searches on this and cannot find any solution. Does
anyone have any ideas?