I think you would have a lot more problems trying to use vault than you do with vss.
I believe subversion (SVN) will be your best bet, and it's free.
Start with some of our most frequented solutions to get help installing your software.
Upgrading to a 2015 product? Make sure to check these out 1st!
Created by the community for the community, Autodesk Exchange Apps for Autodesk Inventor helps you achieve greater speed, accuracy, and automation from concept to manufacturing.