I' not so sure that this program can work directly with Carrara or DS. By directly I mean pass an animation and object files to the program and have it passed back after applying the dynamics. As far as I know Carrara and DS do not use python as their scripting language, so I don;t believe the scripting will work. Another version using the Carrara and/or DS would have to operate with their scripting language. 

Again this is just my opinion based on what I vaguely remember of Carrara and DS so it's very possible I am wrong, so you should what for an official answer before judgement