The ISAPI SCGI extension adds support for the Simple Common Gateway Interface protocol to IIS. SCGI is a standard for communicating between web servers and application servers on the back end offering similar benefits to FastCGI but significantly simpler.

PageSpeed optimization module powered by Google's official PageSpeed optimization libraries. Speedy and optimized web pages help maximize visitor engagement, retention, and conversions. Google's PageSpeed platform offers insights, recommendations, and tools to automatically comply with best practices from the web performance optimization industry. Optimizes the output and PageSpeed grade of any IIS system, including static content, ASP.NET, PHP, ColdFusion, and Application Request Routing. Ca...

The world’s biggest companies trust Aptimize to accelerate their websites and intranets. Aptimize Website Accelerator is an ISAPI filter for Microsoft IIS that automates performance tuning by dynamically optimizing web pages for high performance at runtime – just before a page is sent from web server to browser. Aptimize helps you reduce page load times by up to 75%.

IISxpress is a powerful and highly configurable compression plug-in for IIS. IISxpress enhances the latest Microsoft web technologies like ASP.NET and Ajax (not forgetting ASP, ISAPI Coldfusion and CGI) by reducing page footprint allowing you to concentrate on deploying rich content without worrying about end user download performance and bandwidth costs. With IISxpress you can significantly reduce the download footprint of HTML, JS, CSS, XML, SOAP, XMLRPC and most binary content types. IISxp...

HTTP compression accelerates page loads, speeds up web apps, and reduces bandwidth costs dramatically. HttpZip transparently compresses webpages to reduce file sizes to as little as 2% of their original size (that's 98% smaller!). Safe defaults make httpZip an excellent choice for hosting providers or any site/app with complex code. With MIME type, file, and directory exclusions, browser compatibility checking delivers granular control over safe file compression.

64-bit support - New in Version 4.0 (released March 2009) Windows Server 2003/ IIS 6.0 offers great out-of-the-box compression embedded in the core web server code. ZipEnable is an add-on tool that allows easy configuration and additional features so you get the most out built-in compression. Granularly Manage IIS 6.0 Native Compression Enable Real-time Browser Compatibility Checking - a feature absent with built-in compression Make Changes at Global, Site, Directory, and File levels Access V...