If you want to shutdown Cocoon, go to the command shell window, the one containing:

08:38:39.412 EVENT  Started SocketListener on 0.0.0.0:8888
08:38:39.412 EVENT  Started org.mortbay.jetty.Server@f0eed6

and press Control-C. The command shell window will then be removed.

To startup Cocoon again, first ensure that JAVA_HOME is set and then execute the commands:

cd \cocoon-2.1.7
cocoon servlet

Once again, it will start up another command shell window. Wait for lines like:

09:25:04.787 EVENT  Started SocketListener on 0.0.0.0:8888
09:25:04.787 EVENT  Started org.mortbay.jetty.Server@f0eed6

to appear before using a web browser to go to http://localhost:8888/.