Programming the Windows Vista Firewall. Before I get to the discussion of the sample code, there are two other items of business to address. Firstly, I want to provide pointers to existing documentation and background information that every programmer should peruse, prior to using the Windows Firewall API: The second item of business to address before I get to the sample code is to explain briefly the difference between the Windows Filtering Platform and the Windows Firewall APIs. My sample demonstrates the use of two closely related Windows Vista APIs: those for the Windows Filtering Platform and those for the Windows Firewall. The Windows Filtering Platform API is new in Windows Vista. While some of the Windows Firewall API functionality is available in Microsoft Windows XP, it has been greatly enhanced in Windows Vista. And, while some of the capabilities of the Windows Filtering Platform and Windows Firewall APIs overlap in Windows Vista, it's important to understand the scenarios to which each applies. I learned this lesson the hard way; my first attempt to add firewall rules programmatically for my sample TCP server was based on the Windows Filtering Platform API. This was partly because I first found a sample in the latest SDK that demonstrates adding Windows Filtering Platform. Download Free Firewall from Comodo - Learn what is Firewall & how our Award winning Free Firewall keeps your Windows PC 100% safe from all external threats. Vista firewall: How to block outgoing access for a program for all ports/destination except one? Download shareware, freeware and Demo software for PC, Mac, Linux, and Handhelds categorized into categories, plus software reviews. COMODO offers Free Firewall download for Windows. A multi-layered security application that will constantly monitor and defend your PC from online threats. Unless you add iTunes as an exception, your Windows firewall might prevent iTunes from accessing the Internet. Because I had no reason to suspect that this wouldn't be a good starting point for my own work, I used it as a baseline. Using the Windows Filtering Platform API instead of the Windows Firewall API was also initially attractive, because I found the Windows Filtering Platform API to be more intuitive. Since I have a antivirus program that has a firewall program By using. Windows Vista Firewall walkrsgrl asked on July 10, 2009. Windows Vista includes a software-based firewall. The firewall can prevent Adobe products from accessing the Internet when they are not present on the exceptions list. Download firewall for windows vista - ZoneAlarm Free Antivirus + Firewall 504: Antivirus and a firewall all in one program, and much more programs. Windows 7, Windows Vista and Windows XP. However, while testing my first Windows Filtering Platform. Windows Vista displayed the following screen shot when I was testing my first Windows Filtering Platform. Windows Security Alert dialog box displayed in Windows Vista. Furthermore, my Windows Filtering Platform rules seemed to be ignored. If I clicked the Keep blocking button, the client could never connect, regardless of my own filter. If I clicked the Unblock button, the server was able to receive all traffic, regardless of the client address. In other words, despite the presence of my filter, I was still observing the default per- application behavior of the Windows Firewall. This was contrary to my goals for this demo, as I wanted to demonstrate the proper way to install very specific firewall rules and avoid the preceding potentially confusing dialog box. Subsequent conversation with the engineering team at Microsoft clarified that the Windows Filtering Platform API is not intended to be used in the way in which I was using it. In scenarios in which the Windows Firewall is enabled, and a standard network- based application needs to open one or more ports, the Windows Firewall API should be used. In contrast, the primary purpose of the Windows Filtering Platform API is to facilitate development of rule- based network- infrastructure technologies, such as third- party firewalls. Indeed, the Windows Firewall is based on the Windows Filtering Platform API, as I'll demonstrate later, and non- Microsoft firewalls also are intended to be so. We can infer from this situation that it's Microsoft's intent that the average network application should not interact with the Windows Filtering Platform API in any way. Instead, such applications should call into the higher- level Windows Firewall APIs during installation and un- installation. This is best practice, as the Windows Firewall is enabled by default. However, application developers should also provide documentation that details the expected firewall- rules configuration for proper and secure operation. This is important, as the Windows Firewall may have been replaced by a non- Microsoft solution (and, therefore, a different programmatic interface). Finally, this should serve as a gentle reminder that Windows should always have a software firewall enabled and correctly configured!
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