I currently use the STAT tool. In fact I used to work for the company that developed it. I have version 3.5.8, which does not have a compare function. I will apply for an upgrade to 5.0 and check it out. Thanks much for the information. We currently have a problem with the MS Project compare function in Project Pro 2013, so an alternative is welcome. The version of STAT is a Project Addin, so one would still have to open both files in my opinion.