VGA Planets Assistant (VPA) is a client program for VGA Planets PBEM game (so nothing to do with video standard).
http://sourceforge.net/projects/vpa

With "modern" OS like W2000 or XP, probably due to a bugged support of VESA modes, it stopped working correctly and no one can fix it.

This program isn't in the compatibily database.

I tried anyhow DOSBox but I've got "Loader error (0023) Invalid exe format"

And now I'm reporting... Ciao Paolo