"once I can figure out how to get DirectPlay enabled. "
Seems a lot of people have suddenly been having a problem with Direct Play recently.
Have you tried disabling your Anti-Virus ? Skype has also been implicated.
Or try enabling Direct Play after booting into Safe Mode.
I don't use enable a Compatibility for an older version of Windows with any of the games I have from GOG.
I do have to use the Compatibility option - Override High DPI Scaling Behavior - with most of them, but this should only
apply if you use over 100% Custom Scaling (in Settings > Display > Scale and Layout ).