I decided the other day that I would like to install the latest version of the Guidance Automation Toolkit. No big deal, right? Wrong!
The toolkit itself didn't complain during the process, but GAX has been giving me hell. It seems that I had a couple of hands on labs installed that it felt needed to be uninstalled first. The problem is that the installer only knows them by their short names which aren't very helpful when you have about 20 different HOL on your machine.
I had eventually gotten it down to one that it just calls HolPackage. I can't find anything in the Add/Remove Programs window that looks like a possible target.
Finally I went to every developers friend, Google. There I found a post from Tom Hollander (should have started there anyway) that had some comments describing just this situation. It seems that when I was playing with the TechEd HOL I had installed a guidance package I had created.
Finally, success. The moral of the story is to check for an authority in the area you are haphazardly romping in.