We are running BES 4.0.5 for Exchange on Windows 2000 Server, BES is on it's own server.

I upgraded the box from 4.0.0 to 4.0.5 some time again, probably in June when the 5a patch first came out. Anyhow I noticed there are hotfixes that came out for BES in the past few months so I downloaded them (in this case a few times) and unziped them.

When they run on their own I get the following error message:

The upgrade patch cannot be installed by the windows installer service because the program to be upgraded may be missing, or the upgrade patch may update a different version of the program. Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch.

I have the correct upgrade patches and I know that since I am the only IT guy here that our BES has 4.0.5a installed, so I am not sure why this isn't working.

Oh in the past I found that BES was looking for the old Service Pack temp folder on the hard drive; why RIM wouldn't make the service complete beats me; so I compressed it and saved it, but even when I replace it in its old place I get the same error message from these patches. (big sigh)

Thanks
Andrew

Do you have Service pack 5a extracted to a folder location?

Or maybe you installed Service Pack 5, not Service Pack 5a. What you could try to do is backup your database, install Service Pack 5a then try to apply the Hot fix.

Yes, what Ash said. In order to install a Hotfix you have to extract all of the files of the latest SP to a temporary location. Then during the Hotfix install you'll have to browse to that temporary location.