Hello,
We are trying to play Dungeon Siege II multiplayer LAN, but keep getting Content mismatch error.
3 PCs. All DS patched to 2.2. All have same content (files, sizes, and dates) in \Microsoft Games\Dungeon Siege 2\Resources directory (we have some mods, but all the same). 2 PCs running Win7 home pro, 1 PC running Win XP sp3. Connection is CAT5 via linksys EFAH05W V3.0 HUB
The 2 Win7 PCs can host, join, and play with each other. All 3 can see the Local Network lobby, see the other players, can see games if each host.
When Win XP pc hosts, the other 2 Pcs can access the lobby, can see the game and try to join but get the "The game you are trying to join has been modified. You cannot join it because you don't have required content."
When either Win7 pc hosts, the other Win7 pc can join, but the Win XP pc can access the lobby, can see the game and try to join but gets the "The game you are trying to join has been modified. You cannot join it because you don't have required content."
We've tried recopying the resources directory from one machine to each of the others, we've checked the version of all.
While I could find several posts, none of them seem to deal with this kind of issue (partial success at LAN multiplayer). Hopefully it's solved, and I'm just not searching properly. Regards John K

OK, so after an all-nighter reviewing many more posts, snippets, and some experimenting, I solved it. I'm posting this in case anyone else is hunting for the solution. it might even be able to correct other multiplayer mismatch issues. I altered the command line (Target) in the short cut on ALL 3 PCs to the following, to ensure the screen size and environments were the same. "C:\Program Files\Microsoft Games\Dungeon Siege 2\DungeonSiege2.exe" fullscreen=false multi=true height=768 width=1024 oldschool=true

good find