If you get the Question Marks, maybe you put the Parts and Plugins Folders into the GameData Folder! That does not work. You need to put these Folders into the Mainfolder where the ksp.exe is found. Had the same problem here, now it works ;-) BUT!!! @KevinLaity: In Germany the -> : does not work! It is on the Ö-Key on German Keyboards and that does not Type anything in the console ;-) Maybe you need make a workaround for that problem ;-) I've tried to set the Keyboardlayout to English, and in Windows itself it the Ö-Key gives me the : but not in your Mod! Anyway, this mod can be awesome! But it definitely needs Loops. In conjunction with the print command and the other stuff we could make our own GUI's in your mod. Than it would be possible to read the altitude, velocity and the position every second for Landing Gui's or something like that ;-) Could than look like that: Landing Computer --------------------------------------- Current Altitude: 1000m Current Velocity: 300m/s Current Hor. Velocity: 100m/s Current Vert. Velocity: 200m/s Position: (THE POSITION) ;-) Current Status: Prepare for Landing! I've done the Machinery-Stuff in Minecraft with the ComputerCraft Mod. Maybe you could take a look at the api from ComputerCraft, but this is written in lua.