2.02-9 and up
overnet_search_keyword = false
overnet_port = (something different than before) _or if you have a firewall, close the port instead_
overnet_peers = []
_- source: efendi, in the forums_
Note: you should not normally turn off Overnet as this will decrease the number of sources/sinks available to MLDonkey/MLNet. This will negativly impact up/download performance and availability.