[Greg McKaskle]

The 2014 and 2015 DS have different EXE names. I do not have both installed on my laptop, and I don't control the installers, so I can't say much about what that will do, but the programs can coexist with no problem. Each has its own set of DLLs and a reference to a LV runtime.

The 2015 DS can actually control 4 slot cRIOs that have been updated to 2015 image. Those cRIOs will then speak the 2015 protocol.

The 2015 DS and roboRIO can also speak the old protocol, but this was turned off during the beta in order to avoid misconfiguration.

So in order to better answer your question, do you intend to update last year's robot to this years development tools and image? Is it a 4-slot?

If not, I'd lean towards zipping the old c:\Program Files\FRC Driver Station folder, then installing the new one, then unzipping the old one into a folder something like 2014 FRC Driver Station.

Greg McKaskle