Kestrel named pipes

Author: Rick-Anderson

aspnetcore/fundamentals/servers/kestrel/endpoints.md

@@ -588,4 +588,17 @@ The following example configures an endpoint for HTTP/1.1, HTTP/2, and HTTP/3 co
 
 :::moniker-end
 
+:::moniker range=">= aspnetcore-9.0"
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+### Customize Kestrel named pipe endpoints
+
+Kestrel's named pipe support includes advanced customization options. The [CreateNamedPipeServerStream](/dotnet/api/microsoft.aspnetcore.server.kestrel.transport.namedpipes.namedpipetransportoptions.createnamedpipeserverstream) property on the named pipe options allows pipes to be customized per-endpoint.
+
+An example of where this is useful is a Kestrel app that requires two pipe endpoints with different [access security](/windows/win32/ipc/named-pipe-security-and-access-rights). The `CreateNamedPipeServerStream` option can be used to create pipes with custom security settings, depending on the pipe name.
+
+:::code language="csharp" source="~/fundamentals/servers/kestrel/endpoints/samples/KestrelNamedEP/Program.cs
+" higlight="7-23":::
+
+:::moniker-end
+
 [!INCLUDE [endpoints5-7](~/fundamentals/servers/kestrel/endpoints/includes/endpoints5-7.md)]