Yeah, the transition action is limited when running an execute command. I've had better luck running a Dispatch script during a strate transition and have the script call the executable and pass variables from the data card.
Hope this helps.
Thanks for the tip.
One of the things I want to do is return a pass/fail variable (in the form of an xml file import because there is no other way to do it) and stop the workflow on failure.
Have you been able to control outcome of a workflow based on dispatch script execution?