Whenever you reinstall an operating system, you always get into the problem of finding those old serial numbers for software installs. It’s the Magical Jelly Bean, but for all apps, not just Microsoft apps.
It will pretty much grab anything that is semi-easily found in the registry. I think it’s a nice app that lets you reinstall with just a little bit less pain.
Check out licensecrawler, from Klinzmann
Klinzmann also seems to be working on remote application starting as well as a system crawler for backuping and recovery.