Free web app security software for windows

N-Stalker Web Application Security Scanner 2006 Free Edition is meant to replace previous available N-Stalker technology, i.e., the N-Stealth HTTP Security Scanner.
It provides a free set of Web Security Assessment checks to enhance the overall security of your web server infrastructure, using the most complete web attack signature database available in the market ? ?N-Stealth Web Attack Signature Database?.
Developed upon the patent-pending technology of Component-oriented Web Application Security Scanning, N-Stalker Free Edition allows for quick security assessment of Web Applications under the perspective of Infrastructure and Deployment phases.
N-Stalker Free Edition provides most of the security checks available in the N-Stalker Infrastructure Edition (commercial version), however, enabling reduced subset of almost 18,000 signatures and infrastructure security checks to assist professionals on ensuring a safe environment to deploy Web Applications.
From a security guru to a security conscious professional, N-Stalker allows for a wizard-driven policy configuration, providing an easy-to-use interface to customize the scanner according to your needs.

TamperIE Web Security Tool is a small utility that enables HTML-form tampering for penetration testing of web applications.
TamperIE is an Internet Explorer Browser Helper Object which allows tampering with HTTP requests from Internet Explorer 5 and above.
TamperIE is a useful tool for security testing your web applications, in order to ensure you dont make foolish assumptions about the data sent by client browsers. Since the tool exposes and allows tampering with otherwise inconvenient input, many user-input security flaws immediately become apparent.
SSL? TamperIE works inside IE itself, before data is placed on the wire; this means that it works fine even against SSL secured sites.

N-Stalker Web Application Security Scanner 2006 is a state-of-the-art security assessment tool developed by N-Stalker. By incorporating the well-known N-Stealth HTTP Security Scanner and its 35,000 Web Attack Signature database, along with a patent-pending Component-oriented Web Application Security Assessment technology, N-Stalker is capable of sweeping your Web Application for a large number of vulnerabilities common to this environment, including Cross-site Scripting and SQL injection, Buffer Overflow and Parameter Tampering attacks and much more.