I have managed, using only Win98 2nd edition & its Paint.
My notes:
Windows Win98 System Incantations
1-26-02 AltPrtSc, then MsWord CtrlV
or IN466 Paint CtrlV, SaveAs Jpg
Which I believe means:
Begin in Civ2, perhaps fullscreen or partial, AltPrtSc
Then in MS Word, which I later discovered didn't matter,
So in Paint, CtrlV Paste and the image appears.
I then clipped, saved, chopped, New and CtrlV again, whatever.
Kept the Civ2 image available, so I could start over.
Finally, SaveAs Jpg, and it works:
<a href="http://www.ePlanOffice.com/Hampton/Greece.jpg" target="_blank">
www.ePlanOffice.com/Hampton/Greece18.jpg</a>