What does waitFor() in process returns --Urgent

Hi all
i am calling an exe from browser on solaris, i am able to execute a normal exe file from browser
but my exe is linked with other libraries and this exe is not executing from browser.
when i use waitFor() i am getting 9 and 3 numbers.
can any one tell me what these numbers mean?
     p=r.exec("/data/disk1/edss.exe");
     p=r.exec(commands);
int v=p.waitFor();
     out.println("ret="+v);
     BufferedReader reader =     new BufferedReader(new InputStreamReader(p.getInputStream()));
     while((s = reader.readLine())!=null){
     System.out.println(s);
ret=3 and sometimes 9.
any one kindly provide solution?
Thanks
bye

Quoting from the SDK documentation for Process.waitFor():
the exit value of the process. By convention, 0 indicates normal termination
so the vaues are the exit values for the program you executed, edss.exe

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