Posts: 6,082
Threads: 465
Joined: Nov 2014
Staff roles: Art Developer
You need to restore that DLL in order to play.
As for Vanilla, if you want to play it (or have been playing it) make sure you goto my documents / my games - and rename the Freelancer folder to something else like Freelancer Vanilla
When you play Disco, it will wipe your saves, and if you want to play vanilla again, just rename the current folder to Freelancer Disco, and rename the FL VAnilla folder back to Freelancer