I am currently needing to do this as well and have run in to a bit of a snag. I have created queries to break up all my IE users in to categories based on the version they are using, such as IE5 sp2, IE 6 no service pack, IE 6 sp1, etc. The problem is, many of my clients have seem to have remnants of older versions of IE in miscelaneous directories, and therefor show up under the various collections I have created as having multiple versions. Has anyone else encountered this problem and found a good way to deal with it? Since there are approximately 1000 client, and I am the only SMS admin, I am looking for a better solution than manually deleting the "left over" pieces of older versions of IE.