There's two sets of graphic images. Dexter orginally used
graphics from the game, but that's a violation of WotC
copyright, so I created alternate graphics. The old graphics
are present but not used.

UPGRADE.CPP is a separate program just used to upgrade older
versions of Dexter to the current version. All other files
are part of the main Dexter program.

The source code includes some Symantec C++ specific directives,
like "#pragma once".