On Sun, May 9, 2010 at 11:10 PM, wrote: > Notice that I'm running the Windows 7 proffesional XP mode. > I upgraded to MPLAB V8.50 and still could not find a driver. > > Perhaps there is someone in the PICList who has the ICD3 > working in Windows 7. ICD 3 works fine under my Windows 7 64bit (Home Premimum). I do not have the Win7 professional so that I do not have the XP mode. Did you see ICD 3 in the Device Manager? Take note it will not show ICD 3, but Custom USB Device --> Microchip Custom Device, and the driver used is mchpusb64.sys. I will suggest you try the native Win 7 first before trying the XP mode. MPLAB and main stream Microchip tools works fine under Win 7 64bit. -- Xiaofan http://mcuee.blogspot.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist