Indeed, a couple of months ago I upgraded to 1TB for my TS drive, but I have a clean copy on that drive as well. I think it will be a bigger problem with the unreal version when it comes.
Posted on UKTS by the creator of the raildriver interface
"This is an update to let everyone know what I am hoping to achieve in the next version of my software.
Since the update to TS2015 has included an updated Raildriver.dll I am looking at using that which will mean:-
1) No more editing of the engine scripts with the Railworks Editor, you should be able to just run the new TS2015 Raildriver Interface.
2) As the new dll allows you to get the name of the engine you are driving I will try to load any keymaps automatically.
3) I hope to be able to allow you to re-assign a lever so the Reverser or Independent Brake could be used as the Sifa/Cruise Control on Diesel or Electric trains.
4) After completing 1 - 3 I will look at having analogue gauges for brake / steam pressure etc displayed on a second monitor.
All this depends on me deciphering the new function calls in the dll"
Interesting possibilities there I think.