W2K3 Firewalls

Posted on 2006-05-10
Last Modified: 2013-11-16
Can some give me a good example what a "program exception" in the W2K3 firewall.  I understand the port exceptions, but what does the program exceptions do?  I have several program exceptions that are getting published to my W2K3 servers (via GPO, from a former admin) and I want to clean up the firewall exceptions.  I have always been confused on what actually does a "program exception" does.  My assumptions is if I set a program exception, ports that program wants to open will do so.... is this correct?  

Question by:mchristo63
    LVL 16

    Accepted Solution

    Correct when you set acceptions in the windows firewall you do not have to know a specific port number. By contrast, when you want to open a port, you have to know the number of the port that is used by the program.
    The port that is used by the program that is on the list of exceptions will be open only when the program is waiting to receive a connection.

    LVL 6

    Assisted Solution

    ports are for specific ports on the machine.


    a program exception will allow all of the ports open for that particular program.

    i didn't look at this link, but it might help you:


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    LVL 16

    Expert Comment

    Thank You

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