Dan Fernandez's Blog gives a look at the Shareware kit that MS has released for devleopers. I have not personally tried it, but appears MS is trying to warm up a little to the idea.
It has a few nices features that might help those who do not wish to create their own solution. Just a few of the features mentioned.
Multi-Threaded Splash Screen
Intergrated e-commerce (paypal)
and many more...
So if you are a programmer like myself, and do a lot of shareware type programming, you might want to check this out.