extranet users, negative sids, custom providers.... I cant find a thing on these forums about this. I recently got some example code from EPiServer because we want to have extranet users that can login to episerver without storing their usernames but by authenticating via a 3rd party database and system. The code I got looks like this: public class MyCustomSidProvider : SidProvider public class MyPersonalizedDataProvider : PersonalizedDataProvider The idea is to override the loading of the Sid creation code. What im looking for is anyone who has done this and got it to work? I cant find the SidProvider so the example code wont compile. Thats my first problem - while I go hunt for it, lets hope this reaches someone whos been here before. At least there will be results for someone who types those keywords in the future! I hate getting 0 results! /John