Hello, I want to make automatic change of users permissions while donating on web site. AFAIK it may be done by using the PEX API. If I make my own plugin, I could deal with PEX and change user permissions. Is it a usual way or there's already existing plugins that could make this work? Also, how this plugin could be called from another program? Thanks. Okay, I figured out how to pass commands from environment to mc server on linux http://www.minecraftwiki.net/wiki/Tutorials/Server_startup_script But is there any way to do the same thing on windows? EDIT by Moderator: merged posts, please use the edit button instead of double posting.