DECISION GAMES
DG also holds copyright on several SPI titles, listed separately to conserve space.
MANY of these cannot be distributed due to DG's policy on derivative works and intellectual propery/copyright.  I will respect that here.  Some files are out there on the internet... but I should not link to those files directly.  I will, however, steer you in the right direction.  It's not much of a distinction, but I can live with it. 
However, you may attempt to email the author to seek a copy for your private use.  There are many gameboxes listed here that can be acquired by emailing a statement of intent to the creator.  Noel Wright has been particularly prolific in creating CB gameboxes based upon Strategy and Tactics games produced under the DG era; contact him for many of the games listed below.

TYPE	PIC	TITLE
		Belisarius
		Charlemagne
		Charlemagne 2
		Drive on Stalingrad
		First Arab-Israeli War
		Forgotten Axis: Romania
		Franco-Prussian War
		The Gauntlet
		Ignorant Armies
		Leningrad
		Lutzen: 30 Years War Quad
		Marathon/Granicus
		Nordlingen: 30YW Quad
		Risorgiemento
		Rocroi: 30YW Quad
		Russo-Turkish War
		White Mountain: 30YW Quad
		Spanish Civil War Battles
		Austro-Prussian War
		Ancients (released to open license)
	PIC	Totaller Krieg (special permission granted from DG)

Files hosted on other sites

TYPE	PIC	TITLE
		GIAN CARLO PORCIANI's site has an Ancients Gamebox
	Yodelling Crickets	Yodelling Crickets has a few direct download DG gameboxes
		Yankee Air Pirates has a few direct download DG gameboxes
	WARZONE C	Warzone C (search for "DG") in their English title index. You'll find what you need there.