The "E" something mentioned above would be Ergodex. As best as I understand, the CH MFP is actually based on technology and components from Ergodex. However, they are not interchangeable, and there is quite a bit more than "2 or 3 cardboards" added.
Ergodex has a comparison of the two at http://www.ergodex.com/faqs/Buyer_Selection_Guide.htm
As best as I can tell, Ergodex never managed to produce drivers for Vista or Win 7, although people have found workarounds using VirtualXP and the like.
As for using this device with DCS, did you see this thread?