You're talking about the same thing. SimpleMembership
is itself a MembershipProvider
. Basically, the site you're converting has its own customized membership setup. Most likely you couldn't actually convert it, because it would still require making cutomizations to SimpleMembership
which would simply net you another custom MembershipProvider
.
Besides, ASP.NET MVC5 is already out, and with it, ASP.NET Identity, which completely replaces the old membership system. So, if you're going to spend the time to switch out your authentication, you might as well go for the latest and greatest, instead of moving from one outdated system to another.