Starting the game in the correct player by the new command line option works in 1.35, but unfortunately SE4.EXE doesn't have the correct Version information, it is still 1.26. So I modified PBEM helper to check the executable modification date instead. It will use this feature if the date is 2001-04-11 or later.
Download the new PBEM helper from the link in my signature.
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PBEM