It is just one file to install and one file to maybe uninstall. I know the uninstall doesn't completely fix it, but can someone check and see if Zune still converts them. If so we can release that as an uninstall and not mention how imperfect it is. It's a minor improvement, but an improvement.
Nurta, I dont think that uninstaller will work. For it to ninstall the registry nries, one would need to write a batch file to delete the entries. A .reg file only updates the registry.
I know it won't delete anything, but I think by having it modify it that way, it makes the functionality stop. Did you test to see if the functionality continues after "uninstalling"?