I hardly believe microsoft is too lazy to fix the problem. The simply drop
support of http://userassword@host/ URL is not real solution. I suggest
microsoft copy the part of code from Mozilla to display URL on address bar,
this should solve the problem.

If Microsoft really want to drop this URL syntax, it should be available to
turn it back in "advanced" option or via group policy. Using regedit to
re-enable is not quite professional solution.

Somchai