Port Error Problems

[Stevi]

Please let me know how to correct the following error!

Problem detected!
9:11:55 AM [mysql] Port 3306 in use by "C:\AppServ\MySQL\bin\mysqld-nt --defaults-file=C:\AppServ\MySQL\my.ini mysql"!
9:11:55 AM [mysql] MySQL WILL NOT start without the configured ports free!
9:11:55 AM [mysql] You need to uninstall/disable/reconfigure the blocking application
9:11:55 AM [mysql] or reconfigure MySQL and the Control Panel to listen on a different port
9:11:55 AM [mysql] Attempting to start MySQL service...

[Nobbie]

Please let me know how to correct the following error!

Deinstall the already existing MySQL Installation, which you installed previously and obviously have forgotten. According to

Port 3306 in use by "C:\AppServ\MySQL\bin\mysqld-nt --defaults-file=C:\AppServ\MySQL\my.ini mysql"!