I have a CMS Back Up system that once a week I back up my C drive. First it compares what is on my backup drive to what is on my C drive. Then it gives a list of purged files. Files that are on the back up but no longer on the C drive. You can then purge them from the back up drive. Today I had 12,000 C:\Program Files\TDS3\xDynamic\TDS.unpk\a01 files that I purged . What in the world are they?