Why Reboot?: “Exodus WhyReboot is a small (60KB) Windows application that displays a list of pending file operations that will occur after rebooting your computer. This is useful in determining why an installer has notified you that a reboot is needed.”

SysInternals gives some insight
on how this application probably works.

Check out these posts too:

  1. Cool Tool
  2. Microsoft Patch Registration Cleanup Tool
  3. Windows Installer CleanUp Utility
  4. A history of Windows
  5. Mirosoft Releases 'PhotoSynth' 3D Tool
  6. Shut down Windows through a shortcut
  7. Internet Developer Toolbar beta 1 refresh