Thanks for the replies!

ALT+PrntScr does work, but if a person wants to take several screenshots in a row, that method is pretty cumbersome, since you have to switch to the image editor, paste and save, then switch back.

It turns out that Gadwin PrintScreen will work with Virtual Families 2, and it allows one to take several shots in a row, which are saved to the folder you specify. Plus, it's freeware.
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Middle-aged professional woman still plays computer games. Film at 11.