Where to set username/password for BASIC authentication in IIS7

I have a .net web app running on iis7 (windows 2008) and want to add some simple protection to it.

I've managed to set up BASIC authentication, but cant work out where I set the username/passwords that are allowed to access the resource


Out of the box these would need to be Windows 2008 accounts.

If you wanted to use a custom store (SQL Server, Membership Service) then you'd need to write your own Basic Authentication module:

Developing a Module Using .NET