ChessBase's Fritz with 3rd-party playing programs failed...Now fixed.

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This is a geeky chess post most people won't be interested in. But, when I had a problem I couldn't find the solution on the net or with the Chessbase people, so I'm putting it here if anyone else needs help in the future.

I was using 3rd-party playing programs like Houdini and Nejmet with Chessbase's Fritz interface. But, for some reason after I had used them a while they failed and I could no longer play against them. Here is how I solved the problem.

The Fritz Engine Management thought the files were still connected via a .uci profile file, but it couldn't find them when I tried to use that program. I also tried to create a new .uci profile, but then it said the profile already existed.

I had to delete the old .uci profile files, but at first couldn't find them using Search. The trick was to use Search with "See more results" and "Computer" or "Custom" to broaden the search to computer-wide. This will find the files if they exist (they did on my PC). then I highlighted the files (in "Owner/Data/App/Roaming/"  where they were invisible to my file navigator) and deleted them.

Then when I restarted Rybka those 3rd-party programs weren't seen and I could create new .uci profiles for them as if I had just then loaded them on my computer.

Good luck.