If you host a WCF service as a non-administrator user on Windows 2008 (and Vista) you may get this error even if you are member of the admin groups:
HTTP could not register URL http://+:8000/. Your process does not have access rights to this namespace (see http://go.microsoft.com/fwlink/?LinkId=70353 for details)
Solution: Log in as administrator and fire:
netsh http add urlacl url=http://+:8000/ user=DOMAIN\UserName
