Ahoy from the depths of obscurity lads

So, I bought the Steam pack of Sub Command, Fleet Command, 688i and Dangerous Waters on sale a looong time ago. I recently upgraded to a computer that isn't a potato, running Windows 10, and they all seemed to work fine until I uninstalled DW and now when I reinstall it, it instantly goes to a "Close Program" dialogue.
I've tried the 8.1 fix which got it to work once, but as soon as I quit, back to normal.
Any ideas?