The ports displayed below are the first available for this computer. To change these ports, type the new port numbers in ...

The ports displayed below are the first available for this computer. To change these ports, type the new port numbers in the text boxes below.  If you plan to install Active Directory Domain Services on this computer, do not use %1!u! for the LDAP port or %2!u! for the SSL port because Active Directory Domain Services uses these port numbers. Instead, use available port numbers from the following range: %3!u!-%4!u!.