Filter Initialization
When the first request is made to a Web site, the following steps are taken by the AuthFilter:
The site name and application name are retrieved (using the physical path and the csapp.ini file).
A global cache for storing site configuration authentication properties is created. There is one entry for each site, with each entry being a collection of the authentication properties for that site.
The site cache is populated with the CS Authentication resource properties read from the Administration database using a SiteConfig object.