WhyReboot - find out why you are being told to reboot
review from ClifNotes, Dec 2006, permalink _ tag20tag|tagtagtag
Under review
WhyReboot is a small (~60KB) Windows application that displays a list of pending file operations that will occur after rebooting your computer.
Quote from the website
Well, I've always wondered why any particular installation should require a reboot. In some cases, I've suspected that the reboot is not really necessary, but is done as a precautionary measure (or due to sheer laziness or outright incompetence) by the author of the install script. (My experience as a software developer confirms the prevalence of this sort of thing.) Further research only confirms this.
http://exodusdev.com/products/whyreboot