>>42 means it was a successful code (according to http://www.oehive.org/node/528 )
>>
>>If you exit from the loop after the first iteration, does the output file get created? Looks like you will need to debug this external app.
>
>Exiting from the loop (or not) makes no difference; no output is created. I'm thinking the same. Unfortunately the external app is not mine, so debugging is harder. And especially since running it from a CMD window OR from the VFP command line does produce output. Very FRUSTRATING.

In this case it looks like may be some settings in your application are affecting it? Can you get a list of all your settings?

Also, if you create a simple program to run this app only (no SETs command), does the output get created?