I have a SharePoint Services 3.0 site running on a Windows 2003 server. The site uses windows authentication. On this server I also have a site that uses anonymous authentication (ASP.NET 2.0). On the anonymous site, a user enters a username and password from a third party authentication store. I check if this is a valid account in the third party authentication store using a web service. If the account is valid, I search our AD to see if this user has an account in our AD. If he exists, I retrieve his username, password, and domain. And now the part I cannot get to work. I wish to redirect this user to the SharePoint Services site that uses windows authentication without the user being prompted for a username and password.
Don’t ask me why it has to be done this way, its politics. Any help would be greatly appreciated.