For Windows, you can change dt_socket to dt_shmem.
If you substitute suspend=y, the JVM starts in suspended mode and stays suspended until a debugger attaches to it. This is helpful if you want to start debugging as soon as the JVM starts.
To specify a different port (from 9009, the default) to use when attaching the JVM to a debugger, specify address=port-number.
You can include additional options. A list of JPDA debugging options is available at http://java.sun.com/products/jpda/doc/conninv.html#Invocation.