I don't know about the real amount of memory used, but I'm pretty sure that VFP doesn't load up all the runtime in memory on startup. It load only what is necessary and read the file as necessary.

From what I've heard, VB as a lighter memory footprint than VFP and is generally faster in displaying forms.

HTH

>Does anyone know how much memory the first instance of a VFP app takes? If I start a second instance, how much more memory is used? 4M seems to stick in my mind, but I don't know for sure.
>
> This might not be the best place to ask, but what about VB?
>
> The app I'm looking to write would be made up of 3 different modules. The "front end" module just reads data from a serial line and dumps it to a data file. I'm thinking VB might be a better (lighter) front end than VFP, although the other two modules will be written in VFP. Any thoughts?