>I have produced an executalbe and would like to pass it a file name in the command line such as
>
>run myexecutable.exe /filename.txt

Is your executable a VFP executable or non-VFP?

If VFP and you're starting it from the command window or a shortcut, you can issue

myexecutable filename.txt

and the parameter filename.txt will appear in the VFP executable as a character parameter. The first line of your VFP's main executable must be LPARAMETERS or PARAMETERS.

If VFP and you're calling it from another VFP application, simply

DO MyExecutable WITH "filename.txt"

You can pass parameters of any type this way. Here your VFP executable must start with LPARAMETERS or PARAMETERS again.

If non-VFP and you're trying to call it from within VFP, your executable must be set to receive the parameter. Your existing call should work; you could try it without the / before the filename. You can also look at ShellExecute and/or Ed Rauh's API_APPRUN available here for download.