Did you try running all my repairs in the repair program? If not you should.
A lot of times as well the error could be from not having permissions or MSI not working. My repairs cover all those bases. No files are deleted or added so just make sure to do a reg backup with my program and you can restore the registry if anything goes wrong
5 pm on a Sunday for me, time for dinner with the family. I may not reply back till morning
Shane