I'm trying to troubleshoot something and was wondering if you can run Flexi 8.6 and Flexi 10.5 on the same computer? They both use the same key and I would use only one version at a time. I'm just trying to compare something between the two. I didn't know if the 8.6 would rewrite files in the windows directory that may mess with ver 10.5? Thanks for any insight you may have.