I've been using this little app for a while now. And it hasn't disapointed me yet. Hope it helps you out too.
RegSeeker is a perfect companion for your Windows registry !
RegSeeker includes a powerful registry cleaner and can display various informations like your startup entries, several histories (even index.dat files), installed applications and much more !
With RegSeeker you can search for any item inside your registry, export/delete the results, open them in the registry. RegSeeker also includes a tweaks panel to optimize your OS !
RegSeeker is FREE for personal use only !