I have set up a client and server using RMI and am currently trying to call a script on the server (running AIX) from the client (NT4). To run the script I am using the Runtime.exec()method which works fine if I set up the server on another NT box and run caclulator for example. The problem is that the server returns a 0 code saying the script has run OK, but it has not run because the output file is not produced..Any ideas anyone?!