Making Windows Firewall Changes

All versions of Windows since Windows XP SP2 provide a built-in firewall. Additionally, depending upon your installation, you may have your own firewall software provided by a third party such as BlackICE or Symantec.

The following sections walk you through how to modify the Windows Firewall so you can host services or duplex clients on the machine being configured. This modification is required for IIS to listen on the network for external clients requesting services. If you'll be using only the ASP.NET development server as part of Visual Studio and not allowing external clients to access your services, you don't need to make firewall changes.

NOTE

If you will be developing 100 percent on a local machine and ...

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