Can I install Pano2VR and Object2VR on the same computer?

Yes! All programs work completely independent from each other!

You can even install different versions of the same program. Just make sure the programs are in different directories during installation and later you can change the name of the programs to reflect their version, i.e. Pano2VR 4.0, Pano2VR 4.5beta and Object2VR 2.0.