16_19d2g.zip	Upgrades DOOM 2 v1.666 (German) to DOOM 2 version 1.9
d2_18_19.zip	Upgrades DOOM 2 v1.8 to DOOM2 version 1.9
d2_19pat.zip	Upgrades DOOM 2 v1.7a to DOOM2 version 1.9
doom2p16.zip	
doom2p17.zip	Upgrades DOOM 2 v1.7 REGISTERED to DOOM 2 v1.7a