After my new laptop with Win7 no, a serial port but my radio has to be actuated for control over such, I needed an adapter of the can. After a bad buy (no suitable driving) I have found this here. I installed after receipt of delivery the driver from the CD and .... nothing went. I then loaded a newer driver from the given page, and now everything is fine, I can only recommend the Pluggable USB to RS-232 DB9 in my view.