Create SDDL failed, Error: 1332. The parameter is incorrect.

I'm trying to configure IIS Express to use with Visual Studio 2010 SP1. I have a Windows 7 Ultimate 64bits.

I'm following this tutorial.

When I run this command:

netsh http add urlacl url=https://Melnibone:443/ user=everyone

I get this error:

Create SDDL failed, Error: 1332. The parameter is incorrect.

I've been testing wiht a domain user and it works:

netsh http add urlacl url=https://Melnibone:443/ user=Melnibone\Elric

Any advice?