Create SDDL failed, Error: 1332

Well, I have found the problem.

I'm running Windows 7 in Spanish, so the right command is:

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

Funny, isn't it?

UPDATE:

If you want, you can add a comment to this question telling us how it is in your language.

For me, this issue was caused because there was already an HTTP reservation for the address and port I was using when tried to add an HTTPS reservation.

I found out what was going on when I ran NETSH HTTP SHOW URLACL and saw that the address was already reserved with a different protocol.