I haven't experienced any of the issues you're experiencing. My non-3D Radarbox software crashes every time with most programs I use regularly, mainly Nero and Photoshop CS6, there are other programs cause it to crash. Now I've just given up and when I need to use a program that causes Radarbox to crash, I just don't load Radarbox for that time/day.
I use Radarbox on a high spec desktop PC. I've done all the diagnostics, reinstall into non Program Files folder and nothing has helped. I've also tried installing Radarbox on a new clean PC with all updates installed. The outcome was same every time, radarbox crashing when I closed IE9 (same as OP, I use Firefox on my regular PC) and when I open Nero.
It's surprising because I work as a Windows/Mac Tech Support and the company I work for I diagnose/fix computers and provide support to multiple users. This has made me look into my PC and Windows configuration more closely, I found no issues. I've also spoken to some of my senior tech colleagues and they've said the root cause is the software that is crashing, it's probably unstable and buggy (i.e. Radarbox), not Windows.
Sorry I can't help OP.
What I've worked out is every computer now comes with some version of Windows 7 64bit pre-installed and has been for quite a number of years. The 64bit OS should not be used as an excuse for compatibility/incompatibility anymore. The problematic software must be made compatible and this generic diagnostic line should be used minimally "it must be your PC/OS settings and not the software".