Further to Sailor Steve's reply, the latest version of SH3 Commander is release 3.2.
With regard to the 4GB patch, as far as I am aware it can be applied to most game executables. It can only be used on x64 bit OS's, but as you mention you have upgraded your PC, presumably this is what you have.
Nemo
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"I'm afraid there is no disguising the fact that King's obsession with the Pacific and the Battle of Washington cost us dear in the Battle of the Atlantic".
Sir John Slessor GCB, DSO, MC, DL
AOC-in-C Coastal Command RAF
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