Sorry, it's an executable program written in vb.net with a command line parameter. I set using a configuration file the location of the exe, the command line parameter and the working directory. Unfortunately, I wasn't the author of this program so I had to work out what the success value was so as to set the FailTaskIfReturnCodeIsNotSuccessValue field. Found on a website a script I could run to ascertain this and the value was 0. Set these accordingly on the execute process task, and on testing it on my development pc I get the exit code listed before, so thought, if the deployed one would fail I would get a similar exit code but I don't know what, if any, there is. The package is written such that, if an error is returned from the process i.e. return code is not 0, then an email is sent. Doesn't do this though.