Before we can open ports for 360Share, we need to figure out what port 360Share is using. Here is a brief walkthrough on how to do that. Go ahead and open up 360Share.
Click Tools in the menu at the top of your screen. In the list that drops down click Options.
In the menu at the left hand side of your screen double click the Advanced option. Clicking Advanced, should drop down a couple more options. In this new list of options click the Firewall Config option. Put a dot into the Manual Port open radio button. The port you need to open is in the box to the right of the Manual Port open text. You can change this port if you want to. Just keep in mind that whatever port is in the Manual Port open box, should also be in the Listen On Port box. Then click the Apply button at the bottom of the page. Please enter the number that was in the Manual Port open box 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 360Share. 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.