Before we can open ports for BYOND's pager, we need to figure out what ports BYOND's pager is using. Here is a brief walkthrough on how to do that. Go ahead and open up Dream Seeker.
Click Options in the menu at the top of your screen. In the list that drops down click Preferences.
Click Pager tab at the top of this new window. You should now see the menu shown in the screenshot above. Enter a port number into the Pager Port box. It doesn't really matter what port you choose, but something between 10000 and 16000 would be a good idea. Please enter the port you chose into the box below.
Click the Security Center link near the bottom left of the page.
Click the Windows Firewall link near the bottom right of the page.
Remove the checkmark from the Don't allow exceptions checkbox.
We will list a series of lines here that will show you exactly how to setup Windows XP Firewall's firewall for BYOND Dream Seeker. Go ahead and enter the settings shown below into the Add Port menu.
You should see another page of settings below that need to be added to Windows XP Firewall. Open up a new Add Port page and enter those settings.