Hi,
which JBoss version?
Take a look at this document:
https://community.jboss.org/thread/152911
The shutdown command changed in 6.0M3. Now, it is: shutdown.bat -s service:jmx:rmi:///jndi/rmi://localhost:1090/jmxrmi
For previous versions, it is: shutdown.bat -s jnp://localhost:1099
Hope this helps
Wolfgang