Windows Vista Trouble uninstalling programs

I am trying to uninstall un-needed programs. When I try to so (from Control Panel/Programs and Features)
I get the following error with most of the ones I am trying to uninstall:

An error occurred while trying ti uninstall Adobe Elements 4.0.
It may have already been uninstalled.

Would you like to remove Adobe Elements 4.0 from the
Programs and Features list?

When I click on Continue nothing happens.

 

Have you tried using Revo Uninstaller?

 

Ha! I already had Revo - thanks for reminding me. It removed Adobe Photoshop Elements where the MS Uninstaller wouldn't.

However, I've a gps database that Revo shows with an icon but can't uninstall. It shows quite a few registry entries which says it is in:
C:\Programs (x86)\GPS.com.ar\ConoSur Topo\

but I don't see it in Windows Explorer.

I was thinking I could just delete it and the registry entries but I can't figure out how to delete it.

THANKS!

 

Adobe has it own uninstaller. MS has nothing to do with it. Unless they now own Adobe.