firewall

What is mod security (mod_security)?
ModSecurity is an embeddable web application firewall. It provides protection from a range of attacks against web applications and allows for HTTP traffic monitoring and real-time analysis with no changes to existing infrastructure.
It is also an open source project that aims to make the web application firewall technology available to everyone. [...]

If you have your own firewall software, you can disable window firewall which come with XP SP2. Disable firewall in window xp is quite simple, just follow the steps below and you will get your firewall disable:-