httpZip HTTP Compression for IIS

Windows This is a Community Contributed Download

CategoryImprove Performance
LicenseFree to try
Supported byEmail, Phone, Knowledge base
Works WithIIS 5, IIS 5.1, IIS 6, IIS 7, IIS 7.5
DocumentationhttpZip HTTP Compression for IIS Documentation
Updated onJune 25, 2013
Uploaded byport80


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.


30 - 60% Average Reduction in File Size A 30-60% average file size reduction (2.5 times faster) and as high as 98% reduction (50 times faster) in file size. HTTP and HTTPS (SSL) compression for Microsoft IIS Web servers httpZip provides compression for any type of Web server response through the application of GZip or Deflate compression encoding. Dynamic Compression Common dynamic candidates include: ASP, ASP.NET (including the ASP.NET AJAX framework), ColdFusion, PHP, Perl, JSP (or any type you like). Static Compression Common static compression candidates include: HTML, CSS, JavaScript, XML, Microsoft Office documents, text files (or any type you like). Image Compression httpZip supports image compression candidates such as: PDF, PNG and Bitmap files (or any type you like).


  • Compress Web content on Microsoft IIS Web servers safely and easily
  • Faster Web apps and page loads
  • Reduce bandwidth costs Consolidate Web servers
  • Very cost-effective alternative to appliance-based compression like Redline and NetScaler
  • Enhanced performance and reduced bandwidth for Akamai customers
  • Better compression rates, enhanced configurability and reporting, and superior compatibility
  • Rapid deployment with little maintenance: Install, enable, and enjoy supercharged sites and applications


IIS 7.5 / Server 2008 R2 with Service Pack 1 IIS 7 / Server 2008 with Service Pack 2 IIS 6 / Server 2003 (all editions) with Service Pack 2 Compatible hardware: x86 (32-bit) x64 (64-bit) The following runtimes are also required but can be installed by the httpZip installer if not already present on the target system: .Net 2.0 (or higher) Download the x86 (32-bit) version. Download the x64 (64-bit) version. Visual C++ 2005 SP1 (or higher) Download the x86 (32-bit) version. Download the x64 (64-bit) version. Notes: IIS 5.0 Isolation (compatibility) Mode on IIS 6.0 / Server 2003 is not supported. For IIS 7.x / Server 2008 installations, the following IIS Role Service must be installed: ISAPI Filters