In this free video tutorial for Pro Tools First Russ shows how you can run any virtual instrument plug-in in Pro Tools First and not just the plug-ins purchased from the Avid store.
In the Avid Pro Tools First FAQs it says "Only plug-ins purchased through the Avid Marketplace with your Avid Master Account will work with Pro Tools | First"
Not so - this workaround is a real help to those who don't want to have to repurchase all their VST and AU plug-ins or who have free plug-ins they want to use in Pro Tools First.