Looks to me, that right now he has no reason to stop. He's employed with no fear of losing his job. He's got a warm home to sleep in, he's fed and clothed and never has to pay dime for these privileges. He essentially has no responsibility. I'm willing to bet you do a lot to take care of your home and run your life as well as your business. And also willing to bet that if he had to run his own life he'd find that he doesn't have much.
I think the best way to help someone help themselves is to stop helping them at all. At least the things that any normal adult should be responsible for. Let him run his own life. I know it's way easier said than done. Especially if you're married to the man. But maybe you could start with little things.
I'm sure others on here can offer much better advice. I'm not married to an A. And wasn't successful in my own codependent recovery when I did live with an A.