ZipEnable 4.0 (for IIS 6)

Windows This is a Community Contributed Download

CategoryImprove Performance
LicenseFree to try
Supported byEmail, Phone, Knowledge base
Works WithIIS 6
DocumentationZipEnable 4.0 (for IIS 6) Documentation
Updated onMarch 17, 2009
Uploaded byport80


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 Via a GUI Settings Manager -- without writing a line of code or editing the IIS metabase Easily Configure Compression on All Static and Dynamic Files CPU roll-off keeps compression CPU cycles in check. IIS 6 compression works -- you just need ZipEnable to deploy and manage it safely. ZipEnable is available as a Free 30-Day Trial , and, like all Port80 Software products, ZipEnable includes free IIS technical support.


  • Global Compression Configuration
    • Enable native HTTP/HTTPS compression on IIS 6.0 for both static (HTML, CSS, JavaScript, XML, Microsoft Office documents, text files and more) and dynamic (ASP, ASP.NET, ColdFusion, PHP, Perl, JSP) files
    • Modify compression schemes by file type
      • Industry-standard Gzip and Deflate compression schemes
      • Set level of compression (1-10) for each scheme
      • Granular control of acceptable file extensions for compression
  • Site-Level Configuration
    • Configure compression at directory and file levels for individual virtual servers (sites)
    • Tree view makes for easy navigation and configuration
    • Powerful Persistent Overrides feature allows you to keep global and site level compression settings in order
  • Browser Compatibility Detection -- the only solution for safe IIS 6.0 compression
    • Real-time check identifies a user's browser and automatically delivers compressed/uncompressed content accordingly
    • Configure file type exclusions for any browser type/version to avoid incompatibilities
    • Includes default exclusions for legacy browsers with known incompatibilities
  • CPU Roll-off option
    • Automatically dial back compression rates for periods of unusually heavy traffic to guarantee that compression does not overwork your CPU
    • Configure CPU utilization threshold for compression roll-off
  • Advanced features
    • Manage cache directory, size, and location
    • Control compression exclusions based on HTTP version, proxy usage, and type of request
    • Set priority of default Gzip and Deflate compression schemes
    • Adjust other compression settings such as I/0 buffer size and maximum file size limits
  • Easy-to-use interface
    • Configuration wizard makes it simple to apply compression
    • GUI, tab-based Settings Manager accessible via the Start menu or IIS MMC
    • Command line interface for programmatic control of basic compression settings, ideal for easy IIS 6.0 native compression integration into other applications
  • Default settings roll-back option restores IIS 6.0 native compression settings upon ZipEnable uninstallation (roll-back to metabase settings prior to ZipEnable installation)


  • Faster Page Loads 
  • Instantly Reduced Bandwidth Costs 
  • Server Resources Maxmized to Save on  Investment in New Hardware
  • Eliminate Hassle of Deciphering IIS Metabase
  • Avoid Browser Compression Bugs
  • Use CPU Roll-Off to Control Processor Utilization


  • OS: IIS 6.0 /Windows Server 2003 with Service Pack 2
  • Hardware: x86 32-bit or 64-bit