I had the impression that B+ (or windows:) doesn't release all resources. I don't know if you can call it a resource, but before I rightfully free'd all stuff I got empty uh.. 'things' in my taskbar .. (those inverse button squares indicating an app, what's that name) Ofcoure, since my taskbar does auto-hide/never on-top, I run my app 20+ without noticing that new squares are added each time.. Eventually I had 50+ empty squares on my taskbar :)