Sep 05, 2013
Our Spark platform uses Microsoft's SimpleMembership system which is new in .NET 4.5. It is a light-weight replacement of the classic Microsoft Membership system. By the way, SimpleMembership does support Roles, so you should be good to go.
In case you want to use Security Guard, we are not familiar with it. However, I did notice that it seems to be based on the classic Microsoft Membership and was created by King Wilder. He's an active member in this .NET patterns community. Perhaps he can highlight some of the differences between SimpleMembership and Security Guard? King?
Sep 09, 2013
Here is an update.
It is is not possible to use Security-Guard, but an alternative is SimpleMembership Administration