IFSEXT.DLL and the dialog box that is so very WRONGhttp://blogs.technet.com/adfs/archive/2007/04/26/ifsext-dll-and-the-dialog-box-that-is-so-very-wrong.aspxIfsext.dll is the ADFS ISAPI used by the Token based Web Agent...We have seen issues before where we either need to add this manually or move it to the top of the list on the application config section of IIS. Once you go the properties of a web site,en-USCommunityServer 2.1 SP1 (Build: 61025.2)Configuring SQL Reporting Services to use ADFS Authenticationhttp://blogs.technet.com/adfs/archive/2007/04/26/ifsext-dll-and-the-dialog-box-that-is-so-very-wrong.aspx#902424Tue, 08 May 2007 01:51:13 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:902424ADFS Product Support Blog<p>Special thanks to Rahul Shelar and Sachin Mundra from the ADFS and SQL teams for working with me on this</p>