I can give you source code for such a 'protocol' driver if you like. I takes an IOCTL from an app that opens a particular adapter, than, there is a generic OID handling IOCTL. YOu can set/request any OID with this. It is a complete project, but you will need a DDK, preferably the 2003 server DDK. It has an inf file for installation too. Truth is the subjection of reality to an individuals perception