Firewall Problem

[lothos12345]

I created an ASP.NET program that is being used on my personnel computer, which is running XP Professional. The problem is that the Firewall on XP blocks any other computer on my network from getting to the program. The only way it works is if I turn off my Firewall. I do not want to do this, is there a way to open a hole in this firewall to allow other computer to use this ASP.NET application that I created. All computers using this app. are running XP Professional as well. And the application is written with VB. Any help offered is greatly appreciated.

[Rothariger]

if you have xp sp2. you must to open the port 80, for incoming transmitions...