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The game starts ok in single player on both pcs so long as directx9 is installed.
For multiplayer so far I've installed directplay and mfc42, and done dll overrides on wsock32 and mss32.

Currently when starting a TCPIP game, the Create Game button causes a crash with no error messages. (It has this in common with GTA1 which came out only 12 months earlier.)

I suspect this might be a graphical problem with how the lobby is displayed - e.g. if it reverts to Windows theme. But if anyone has it working or can show what the LAN lobby looks like I'd be grateful to know what else to try.