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Asked: 2026-05-18T05:45:03+00:00

Presently I am working in a Firewall project. First I downloaded a Firewall project

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Presently I am working in a Firewall project. First I downloaded a Firewall project from codeproject http://www.codeproject.com/KB/cpp/firewallpapi.aspx which was in C++. So I made a dll from that code and called it from C# project. Its working perfectly . But in Windows 7 it is not working. Can anyone give me any hint, why it is not working at windows 7.

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1 Answer

  1. Editorial Team

    Perhaps because the API has changed:

    “By providing a simpler development
    platform, Windows Filtering Platform
    is designed to replace previous packet
    filtering technologies such as
    Transport Driver Interface (TDI)
    filters, Network Driver Interface
    Specification (NDIS) filters, and
    Winsock Layered Service Providers
    (LSP). Starting in Windows Server 2008
    and Windows Vista, the firewall hook
    and the filter hook drivers are not
    available; applications that were
    using these drivers should use Windows
    Filtering Platform instead.”

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