After installing WindowsBlinds, my WordPerfect and Quattro Pro would not properly open. That is, each program would appear to open, but immediately shut down. If I closed WindowsBlinds, both programs would open properly and stay open.
I purchased WindowsBlinds many years ago, and if my memory serves me correctly, the same issue happened which is why I have not been a user of Stardock products for a very long time.
Fences and CursorFX work just fine.