i have only one idea, did you install MCSP and PBP as administrator?

I might have, don't remember. It might be possible for the install to be incomplete if the installation package did not have necessary admin rights. I do know several software have varying levels of problems with Win10.

I just cannot install properly PaintShop Pro XI using Win10 64bit. Looks like I'll be forced to bite that bullet and get and upgrade even though I am very content with that old version.

Robert