Multi user issue resolved
from
WinCustomize Forums
At long last, I've finally managed to resolve my problem getting WB 4.95 working with multi-user accounts. I know there's at least one other soul with this problem so here's what worked.
First I uninstalled WB4.6 and rebooted. On reboot, I deleted all non-skin files in my WB directory, then installed WB4.95 and rebooted. Admin accounts worked with WB fine but not limited accounts so I made all users admins and tried again without success. So I rebooted with all users as admins. Now WB worked on all accounts.
Of course giving everyone admin rights isn't a good thing so I changed them back to limited users and tried changing skins. This time WB worked just fine even on limited accounts. A bit more effort than ODNT applications normally need but all's well now.
First I uninstalled WB4.6 and rebooted. On reboot, I deleted all non-skin files in my WB directory, then installed WB4.95 and rebooted. Admin accounts worked with WB fine but not limited accounts so I made all users admins and tried again without success. So I rebooted with all users as admins. Now WB worked on all accounts.
Of course giving everyone admin rights isn't a good thing so I changed them back to limited users and tried changing skins. This time WB worked just fine even on limited accounts. A bit more effort than ODNT applications normally need but all's well now.

Thanks! I hope Stardock can fix this issue so it doesn't need to be reset each time.