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>>Are you trying to get "COMMAND" or "_STARTUP" to work while firing off an EXE you built with VFP? I think the "COMMAND" and "_STARTUP" are only used when starting VFP IDE up. I think exe's you build and don't use those commands in the config file.
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>Yes, that is what I'm trying to do.
>I have a shipping app with a problem that I'd like to try to fix without re-releasing the app, as a temporary fix.
>I'd like to send the customer a config.fpw file, an .FXP file, and not touch their .exe file.

I'm pretty sure _STARTUP and COMMAND are ignored unless starting the VFP IDE. You could build another EXE and set the _ASCIICOLS in that one and have that one "DO" your EXE. If they have shortcuts they would need to update them all to the new exe. So it might not be a great solution.