Another thing i found out that will stop the acc. server from running. Is go into your wamp if ur using wamp or anywhere you got the mysql folder. Click on bin this folder is where the winmysqladmin is stored. Ok now click on the mysqladmin, mysqld, mysqld-max, mysqld-max.nt, mysqld-nt, mysqld-opt, mysqldump and then process once all these are done then open the Winmysqldamin and make sure you deleted the my.ini folder out of ur window folder. If you did delete it once you start the winmysqladmin will ask for username and password. Just a helpfully advice the shell.dat file will not stop the acc server from running. If you cont. to need help please add me to msn

and i will asset you in the help you need.
Yes like Soulerman said check your AuthorizeDB.cfg file located in ur ACCserver folder
If it looks like this
127.0.0.1 root test my account name password id
count_stat server_name status
127.0.0.1 test 4871344843773d3d111 my
well change it to this
127.0.0.1 root test my account name password id
count_stat server_name status
127.0.0.1 root 4871344843773d3d111 my
that might fix that problem to.