Hi, First of all, thanks a lot to all those who are contributing to this real good idea. But to help all new starters as I am, and avoid to spend one hour to make it work, here is what I have done. I am using Windows 7, and KSP is installed in D:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program which is, i guess a very common place. I use run->cmd to get the prompt, and put me in CKAN dir. As said at the beginning of this thread, I first wrote D:\temp\CKAN>ckan update I don't know where KSP is installed. Use 'ckan ksp help' for assistance on setting this. So ok, not a good directory. I use the second command: D:\temp\CKAN>ckan ksp add default "D:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program" Added "default" with root "D:\Program Files (x86)\Steam\steamapps\common\Kerbal Space Program" to known installs Yes !! Let's go: D:\temp\CKAN>ckan update I don't know where KSP is installed. Use 'ckan ksp help' for assistance on setting this. What ?!? You must be kidding me ! After some research, and resetting installation, I found out that after "ckan ksp add default" you must add ckan ksp default default I hope it will help, and may be user guide completed. Thanks again for this great job.