Microsoft Network Monitor 3.4 (archive)

Network Monitor 3.4 is the archive versioned tool for network traffic capture and protocol analysis. Download Microsoft Message Analyzer for updated parser support.
  • Note:There are multiple files available for this download.Once you click on the "Download" button, you will be prompted to select the files you need.

    3.4 2350

    File Name:




    Date Published:


    File Size:

    6.1 MB

    8.3 MB

    6.5 MB

    KB Articles: KB933741

      Network Monitor 3.4 is the archived version protocol analyzer and is no longer under development. Microsoft Message Analyzer is the replacement for Network Monitor 3.4. Microsoft Message Analyzer supports the latest protocol parsers for capturing, displaying, and analyzing protocol messaging traffic, events, and other system or application messages in troubleshooting and diagnostic scenarios. It is a significantly more powerful tool for capturing and analyzing protocol messages. Message Analyzer continues to undergo improvements and has an active user community. You can find more information on the download page here.
  • Supported Operating System

    Windows 7, Windows 8, Windows Server 2003 Service Pack 2, Windows Server 2003 Service Pack 2 x64 Edition, Windows Server 2008, Windows Server 2008 R2, Windows Server 2008 R2 for Itanium-based Systems, Windows Server 2012, Windows Vista 64-bit Editions Service Pack 1, Windows Vista Service Pack 1, Windows XP 64-bit, Windows XP Service Pack 3

      • 1 GHz or greater CPU
      • 1 GB or greater memory
      • 60 MB free hard disk space plus extra room for capture files
    • The Network Monitor core engine has been decoupled from the parser set. To install the full Network Monitor 3.4 product:
      • Run the setup.exe for the platform you are installing.
      • You will be prompted first to install the core engine. Follow the installation directions. Make sure you close existing instances of netmon.exe, nmcap.exe and any running NMAPI applications.
      • Next you will be prompted to install the parser package. Follow the installation directions:

      To uninstall the full Network Monitor 3.4 product:
      • Go to Add/Remove Programs in Control Panel
      • Uninstall both Microsoft Network Monitor 3.4 and Microsoft Network Monitor: NetworkMonitor Parsers 3.4
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