This is a driver that works for my Icom CI-V cable made by donner digital. It is the only driver that works for me while using HRD Rig control with XP Pro and a prolific usb to serial converter. This is just the prolific driver only!
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Here is the link!
http://dl.dropbox.com/u/10775536/prolific_Icom_Win2K_XP.rar