This save crashes soon after it's loaded. Always at the exact same time.
It appears to be exactly at the moment of season change.

Things I have tried:
Disbanded military.
DFhack Clean all items/creatures/map including mud and snow
Disabled all hauling jobs
Disabled auto save features of all kinds
09042014 20:15pm--

In the past, I have started this game's initial save for 7 attempts at this deadly landscape.
I have unpacked MW DF fresh whenever the game started to seem unstable (any appcrash) roughly 7 times as well, although not once per attempt.

I have at one time, in this game, used MW v6.1 for this save generated in 5.1 this is the first sign of error. Except maybe that there is no growth of cave fungus in fortress despite having briefly breached cave level 3.

I can't give up Risen Murderhatred's Fortress of Bewilding Hate, and it's endless undead assaults.