Thanks Bob for bringing this to my attention, he did, really :smart:
"You are receiving this message because you currently have an application in Preproduction (DEV/TEST) for which the inline sign-in feature has been provisioned by means of the .NET My Services Manager system. As of Monday, May 13th, 2002, we will permanently disable the feature and will not be allowing any applications that use it to roll into Production. Inline sign-in was introduced in .NET Passport version 2.0 (August, 2001) as an optional alternative to the standard single sign-in (SSI) mechanism. It allowed participating sites to embed the sign-in dialog box directly in a page on their site, instead of redirecting users to a .NET Passport-hosted sign-in page. However, in a recent security evaluation of the .NET Passport service, inline sign-in was identified as representing an unacceptable security risk to the service. Therefore, effective immediately, this functionality is being phased out."