I have Winxp with both Daz3 (which I prefer)and Daz 4.5..HOwever my other computer is Win7 Ultimate and I'm unable to open any previously saved scenes. Seems certain items are missing. Keep Daz3 as very stable and easy installing..Daz/Studio/Content..

Win10  Poser 2014/Poser 11 Daz3D