I wouldn't know, Impulse can't decompress my game.
I've removed all Sins-related registry entries, including those which the support team say need to be removed, and I have deleted all Sins-related directories on my computer. I've switched to the legacy download system, and I've rebooted my computer several times.
So as frogboy says, thank you Ironclad, your game was fun while I was able to play it, and I don't hold you to blame for my no longer being able to.