Kupa, "SR-2.1 bypasses the current security measures found in Poser 5 resulting in improved reliability and efficiency." Is Curious thinking of changing from Interlok to another system for later patches, or have you guys totally scramped the Call Home idea? I know many people might "hate me" for suggesting this - but you might want to concider having serial checks on your download page for your service release packages. At least this will limit the amount of warez people getting access to the updates. This has worked well for Rhino 3d and Vue 4 helping "limit" the amount of people downloading updates for use on illegal versions. I am not sorry to see Interlok go (you know my vocal outcry about it to begin with) but I woul certainly not like to see the removal of the Interlok system make your companies software a clear and easy target for warez distrubtion. Regards and Best WiNC