I put together a post on my experience with a new Windows 7 Home Premium 64-bit notebook and using an Edgeport 8 port serial device. The results were great on the first attempt. http://www.k2dsl.com/2010/02/09/ham-radio-usb-serial-cat-rig-control-fsk-windows-7/ 73 & hope to work many of you this weekend, K2DSL