Process.destroy() doesn't work?

Hey,
I'm running Java 1.4 on Win 2k, and when I call process.destroy(), the process isn't killed. Here is my code:
class MyRunner{
public static void main (String [] args){
    Runtime rt = Runtime.getRuntime();
    Process pr = null;
    try{
      pr = rt.exec("cmd /c start cscript.exe "C:\\Test.vbs\"");
      System.out.println("Got started");
      Thread.sleep(20000);
    catch(Exception e){
    finally{
      System.out.println("I'm about to kill it");
      pr.destroy();
      System.out.println("Killed it.");
}In the console, the output is:
Got started.
And then it waits 10 seconds before printing:
I'm about to kill it
Killed it.
But the process isn't killed. Why?
Thanks for any help

The cmd process is killed (it was already finished most likely). The cscript.exe process cmd started is probably still running.
See [http://www.computerhope.com/cmd.htm|http://www.computerhope.com/cmd.htm].
Note that is not really related to Java.

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