Overview Windows NT Kernel Level

     This scheme shows the structure of the NiCap Device Driver and the way it is bount to the NDIS subsystem of the Windows NT. The dotted blocks (tncServer; tncAdapter; ...) show the the correspondance between parts of the NiCap Driver whith objects in the "User Level".

     NOTE: in the system are registered not only the NiCapServer, but several other DeviceObjects - one for each "protocol" and "miniport" (virtual NIC). This enables the handle to the User Level of every one of those parts of the NiCap and direct communication with each one of them (ReadFile, WriteFile, DeviceIoControl).

     The flow of the network packets is managed by the coupled pairs of "protocol" and one or more "miniport" DeviceObjects.

     NOTE: in this version of the NiCap Driver is implemented the binding of several "miniports" to one "protocol", but only the first one can work in transparent mode.