This file is made by the game and retains the settings in your preference menu. For some reason it can get corrupted when starting 2.0.
It is in the \save directory of SPWAW. Delete it, start the game, reset your preferences and the game will make a new one.
Now that was mentioned in the download instructions, but I am just guessing that some folks (not you, of course!
) did not read that 
So if you have a crash, try this speedy remedy.
Wild Bill
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In Arduis Fidelis
Wild Bill Wilder
Coordinator, Scenario Design
Matrix Games
