You don't. Different ports should be used for different applications. The whole idea of port numbers is to distinguish different applications.
you can't
There are no codes.
You cannot reuse Nintendo Club codes that have already been used. You will get an error message telling you that code has already been redeemed if you try to use it again.
If the code has already been used, you are fine. If the code has been used, then you cant use it again.
Port 80 is the default web server port and IIS would use Port 80 unless configured to use a different port.
No, when port 8080 is in use by one program, other programs cannot access it simultaneously. Each port can be bound to only one process at a time; if another program attempts to use the same port, it will typically receive an error indicating that the port is already in use. To resolve this, the conflicting program must be stopped or configured to use a different port.
No. If you buy a used Droid that has already been activated, you can use it freely.
Use a different email address.
An SMTP port is the port used to transfer email using the SMTP protocol. Typically SMTP is configured to use TCP port 25, although some servers will use TCP port 587.
This means that the email address which you are trying to use to create an accout has already been created by some else or is being used by some one else or else some one has already registered with that email address.
I already used it in a sentence.
how can you use a store promotional discount code twice. The store is telling me this code has been already used