Error on startup of Interchange.
-- indicates PID file missing

Error on stop of Interchange
-- indicates PID file missing

The PID file is a text document that can be recreated if this file is some how deleted or not created on a successful stop of the server.  Create a new text file in the BIN directory and then name it "servername"_server.pid. (Please do not use quotes, just place the name of your server)