Directx runtime web installer9/28/2023 Starting with Windows 7, the netsh command can diagnose of the internal state of WFP. When the filter matches, the system invokes the callout, which handles a specified action. Administrators specify a callout function during registration of a filter rule. The filtering drivers provide filtering capabilities other than the default block/allow. Callout, a callback function exposed by a filtering driver.It also maintains statistics for the WFP and logs its state. It accepts filtering rules and enforces the security model of the application. Base filtering engine, the module that manages the filtering engine.Filters and callouts may be associated to providers which may be given a name and description and are essentially associated to a particular application or service. To mitigate conflicts between filters, they are given weights (priorities) and grouped into sublayers, which also have weights. The filters operate on a per-application basis. A callout (see below) may implement any other action as required. It matches the data within a packet – as exposed by the shims – against filtering rules, and either blocks or permits the packet. Filtering engine, which spans both kernel-mode and user-mode, providing basic filtering capabilities.Internet Control Message Protocol (ICMP) shim.Application Layer Enforcement (ALE) shim.WFP comes with a set of shims users can register shims for other protocols using the API. Different shims exist for protocols at different layers. Shims, which expose the internal structure of a packet as properties.The filtering platform includes the following components: Since Windows 8 and Windows Server 2012, WFP allows filtering at the second layer of TCP/IP suite. It provides features such as integrated communication and per-application processing logic. WFP relies on Windows Vista's Next Generation TCP/IP stack. Additionally, WFP is used to implement NAT and to store IPSec policy configuration. Microsoft intended WFP for use by firewalls, antimalware software, and parental controls apps. Windows Filtering Platform (WFP) is a set of system services in Windows Vista and later that allows Windows software to process and filter network traffic.
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