Was Tony Stark's Office Computer's Operating System in Iron Man a real OS?

Question

In the Scene when Ms. Potts hacks the files in the Stark Industries office complex in Stark's Office, she uses an odd GUI, obviously not your usual OS. Im curious if it was just CGI or if they had real software...

Answer 1

It was probly a homebrewed OS for the movie, you can tell by the impracticle folders and data transfer interface and animations

Answer 2

Tony Stark Office

Answer 3

I thought I saw a couple of Vista-esque GUI elements like the titlebar controls (just recoloured), but I could be wrong. :P Most movies do a custom GUI design, possibly to avoid any copyright or licensing issues, or to simplify things for storytelling purposes.