Support webapi replacement and asp.net integration out of the box
I know you have a better story for authentication, fresh, clean, no dependency, etc.
I know you have a better story for authorization, fresh, clean, no dependency, etc.
I know you have a better story for cache/session - fresh, clean, no dependency, not single threaded, etc.
However, it can be difficult to replace all that to start with, so servicestack should ship with adapters to use asp.net authentication, authorization, cache/session out of the box
See prior post.

-
Jeff Ronay commented
I would really like to see out of the box support for IWA - Integrated Windows Authentication with Active Directory. Many in-house .Net developers for both large and small organizations write web applications that are Intranet facing, and require the use of Integrated Windows Authentication with IIS.
Kerberos authentication often plays a big part in shipping the logged in user’s credentials via tickets from the application server to back end databases. Built-in support for a ServiceStack web service to be Active Directory aware would be awesome! We currently use Filter Attributes to get this desired behavior for our ServiceStack web services but would love to see this important part of security built in to the stack.
Thanks,
Jeff Ronay – Cleveland, Ohio -
Yep, something we can look at providing a nicer story around in future.