The oversight made Hotmail, which used the site for authentication, unavailable on December 24. In December 1999, Microsoft neglected to pay their annual $35 '' domain registration fee to Network Solutions. As a consequence, Windows Live ID is not positioned as the single sign-on service for all web commerce, but as one choice of many among identity systems. He has since become Microsoft's Chief Identity Architect and helped address those violations in the design of the Windows Live ID identity meta-system. A prominent critic was Kim Cameron, the author of The Laws of Identity, who questioned Microsoft Passport in its violations of those laws. Microsoft Passport received much criticism. Microsoft Passport, the predecessor to Windows Live ID, was originally positioned as a single sign-on service for all web commerce.
