I should have added through Group Policy. I know how to add these one at a
time through Group Policy, what I would like to do is to add a range, for
example 5900-5909, by adding one item through Group Policy settings. Using
NETSH this way is for single, local machine use, right? Being one of the
network admins where I work, I have to do a lot of these things through Group
Policy settings. Adding these ports one at a time is inefficient and looks
messy when you look at the Exceptions page in Windows Firewall.