I upgraded from Vista Home Premium 64 bit to Win 7 Home Premium 64 bit and I didn't get any notice to uninstall WindowBlinds.  One thing I did though do was reset the skin back to default.  I have Object Desktop so I in fact reset everything that change things like icons, cursor and what have you back to default before running the Win 7 update.

Don't know if this little bit of information will help.

EDIT:  Just noticed you are talking about WB 6, I had WB 7 installed, sorry.  If you reset the skin back to default before uninstalling you might want to try a clean up program like CCleaner, and use the Registry clean up function.

Thanks for all your replys...after I posted, I went offline during the upgrade install, and just kept hammerin' away at the registry and Windows Explorer. I ended up getting it all out by doing a search of " wb*.* " and went through each piece by piece and the 7 install finally proceeded. But I sure do appreciate the suggestions! I will use them on my son's laptop if I run into the same problems!!  THANKS!!!!!!!!!

Tammy