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WFP Changes for Windows Vista SP1 and Windows Server 2008

Last Updated: 4/22/2017

Several changes have been made in the available functions and behavior of the Windows Filtering Platform that begin with Windows Vista with Service Pack 1 (SP1) and Windows Server 2008. Frequently, to take advantage of the new features, you must compile or recompile a callout driver that has the NTDDI_VERSION macro set to NTDDI_WIN6SP1.

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