randym77 is right on the money. It all comes down to the !Daz folder. You can go ahead and install in the P4 structure, then either copy only the !Daz folder to the P5 library structure and everything should work fine. This drive me crazy with V3. This time I knew better. I installed in P4, moved the !Daz folder, and everything works great. Punomaus has a great idea too. I never thought of using the multiple Runtime option to set up a seperate library structure for each major character. I may have to restructure all my files this weekend.