Cumulative Security Update for Internet Explorer (832894): Tell me, why is this a good idea? Hasn’t this been a standard for a lo-o-o-ong time now?
The update removes support for handling user names and passwords in HTTP and HTTP with Secure Sockets Layer (SSL) or HTTPS URLs in Microsoft Internet Explorer. The following URL syntax is no longer supported in Internet Explorer or Windows Explorer after you install this software update: http(s)://username:password@server/resource.ext
If you use Windows Update to keep your desktop in shape, you may have lost this functionality already.