I think the best place to ask that would be [email protected]
"Winstep Xtreme is a shell enhancement designed to run on top of Explorer, not a shell replacement. You can run it as the shell if you want (in fact, you can even run Notepad as the shell), but this is not supported. Nothing stops you, however, from running Winstep Xtreme along with other shells - such as LiteStep."
"Winstep Xtreme runs just like any other normal application and does not change Windows system files in any way, shape or form. It's perfectly safe to run, and easy to operate - you won't get in trouble if you run it, don't worry."
Windowblinds
Brad Wardell: In a nutshell here's how WindowBlinds works:
WindowBlinds intercepts GUI paint calls made by apps and the OS and redirects them to wblind.dll which does the painting for them.
Don't know if this helped or not...