Hi, i don't know if you still need advice on this but to let you know I'm running Poser 10 on a brand new PC running Windows 11 and had no trouble installing or running it at all. I just launched it after the full installation, added my name and serial number only, unchecked the updates and register boxes and away it went. It didn't try to contact any licensing servers. I did have to set the libraries to external though after the first launch and, if you check out my post on this forum from the other day, I had to add contentparadise to the windows host file to stop the certificate popup. 

Hope this is of use.