True, and if the WalkDesigner pose folder was over written you will need to reinstall P6. The adding the P4 walk files to the WD folder will cause all sorts of trouble. Because P6 (and P5) use compressed files they have a different extension. This means there will be 2 copies of many of the blends. One with the PZ2 extension and one with a PZZ extension. Walk desiger will not run like this. Open an Windows explorer and move the WalkDesigner pose folder to a backup location, reinstall, repatch, then carefully move only the blends with unique names back into the real WD folder. Nerd3D