I am getting the following error in the Catalina log file while starting Tomcat on Windows:
Sep 3, 2010 3:22:53 PM org.apache.catalina.startup.Catalina start
SEV
One application is using the 8080 port. To find out which one, use the following command on Windows Command Prompt:
C:\>netstat -aon | findstr 0.0:8080
Then take the number in the last column (that's the process ID) and find out which is the process in task manager. If nothing comes out of the command, then you have no application using that port.