Thanks for your answer. I put a lot of time to understand what was "MCPC +" and where to find it. I've found this build and it looks like the one you recommend us to update to. However, I tried to put the new build where was the old one (#162) that I removed. But when I launch the server it says "Error: Unable to access jarfile C:Users...mcpc-plus-1.6.4-R2.1-forge953-B162.jar".
How do I correctly install the new build ? And how it can be well recognized by the server ?
Thanks for your help.