I hope someone can give me a little help with this...

BTW, I'm running WinXP/Tomcat. I need to start and end a process on
that machine using a Java servlet that responds to user input. So, I'm
using a method that accepts the command (cmd) and returns the Process
object like this...

public class WindowsExec {
    public static Process sendCommand(String cmd) {
        try {
            Runtime rt = Runtime.getRuntime();
            Process proc = rt.exec(cmd);
            return proc;
        } catch (Throwable t) {
            t.printStackTrace();
            Process error = null;
            return error;
        }
    }

// I'm not sure if the error handling is done correctly in the above...
// but on to the second part...

    public static void killCommand(Process myProcess) {
        myProcess.destroy();
    }
}

Now I also have an array of Process objects (Part of ServerManager
class) so when I call these methods, I'm using something like this...

    server = 0; // this will be dynamically generated
    cmd = "C:\\Program Files\\myprog" + server + ".exe";
    ServerManager.myProcess[server] = WindowsExec.sendCommand(cmd);

And on a separate JSP page:

    WindowsExec.killCommand(ServerManager.myProcess[server]);

The behavior I'm seeing is that the application starts to launch, but
it hangs and I cannot kill the process via the Java code. It seems like
I need a better way to keep track of the Process objects. Any help
appreciated.