Usb serial usb key VB.NET source code

I need to sell my own application? with a normal usb flash pen? inserted in any usb port and when the application run if I inserted? that authorized USB? flash key the application turn on some keys (3 or 4 keys), when I disconect the? same serialized usb flash key that keys turn off and nobody can't? use that keys.? My application are made in VB.NET and I need some assistance to link the programers work with my application! I want the source code and i want to generated? whatever usb flash pens? I want.? I Want to autorize some normal usb flash pen without any code inside them! My application or the VB code i want? buy from you or a coder need to give this type of possibility! I need to autorize some usb flash pens? inside the source code with the serial number + id number or whatever info inside the usb pens, and when some one use that usb pen? my .NET app run some code. They must have other funcionality, without that autorized usb key? we turn off some keys? in the keyboard/virtual keyboard? , when we connect that usb key that keys in the keyboard turn on again. I think is simple, sry my rude english please. ## Deliverables NExt I want a few more things to enrich my software, like client/server trace of the serial keys, mailing of amount of billing, I think we can have a good and profitable close future, etc,etc..