Name: Virtual Drive Clone
Link: http://www.slysoft.com/en/download.html
Lisence: FreeWare
Description: Virtual CloneDrive works and behaves just like a physical CD/DVD drive, however it exists only virtually. Image files generated with CloneDVD or CloneCD can be mounted onto a virtual drive from your hard-disk or from a network drive and used in the same manner as inserting them into a normal CD/DVD drive.
The best part is that when I installed it on a Vista PC, I did not have to restart the computer to complete the install. It DID add a driver though, so that may be a problem.