we are a 3D printer reseller .
One of our customers is asking, if die latest version of Arduino 1.0.5 is running under Windows Server 2008 R2?
Arduino should work together with Repetier Host to drive a Leapfrog Creatr 3D printer
Not familiar with repetier host or how it should drive that leapfrog printer.
I think you should give it a try to get an answer, the proof is in the pudding test.
I expect security problems with the software depending on the configuration of the server. (there was a thread about this a few years ago, can't find it)