You can call a MS-DOS command in Java environment. For exampe, if I
stop "Symantec Core LC" service in my computer. My testing code is like
following.

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
*
* @author Carl Wu
*
*/
public class StopServiceTest {

    /**
    * Test main method
    * @param args
    */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        StopServiceTest test = new StopServiceTest();
        test.stopService("\"Symantec Core LC\"");

    }

    /**
    * Stop a service in Windows XP
    *
    * @param serviceName the service name
    * If there is space in service name string, please add "\" before and
after of the service name.
    */
    protected void stopService(String serviceName) {
        try {
            String command = "net stop " + serviceName;
            //print command name
            System.out.println(command);
            Process p = Runtime.getRuntime().exec(command);

            //print execute results
            InputStream is = p.getInputStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            String line;
            while ((line = br.readLine()) != null) {
                System.out.println(line);
            }
            is.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

The testing results are:

net stop "Symantec Core LC"
The Symantec Core LC service is stopping.
The Symantec Core LC service was stopped successfully.

May it helpful to you,

Carl Wu