The plugin is for a Velleman USB Experiment Interface Board ( http://www.velleman.be/ot/en/product/view/?id=351980 )
The plugin will give you control over :
8 digital outputs
5 digital inputs
2 Analog outputs
2 Analog inputs
The active RFID stuff could be implemented using only the generic serial device - I've been thinking out getting a few to play with. I've used a Maxbotix ultrasonic sensor which reports status in a similar fashion using the generic serial device.
I just saw your private message...
I think the problem is in the API (I see I forgot to mention it in my previous post)
Attached is the DLL file that should be anywhere in your PATH (ie. windows system32 folder)
When you put it in there it should work.
Let me know if it works with the API, if not, I'll see what I can do.
LostDreamer
ps. About the ActiveRFID is something I put on hold for now, the domoticaforum had a few for tests but they proved to be a bit unstable (they can stop for up to a few hours)
I might try it somewhere next month anyway but can't promosie anything...