I've done another dumb thing. I purchased the ICD3 expecting it to work with Windows 7. I figured Microchip was a reputable company and they would want their products work with all operating systems especially the latest versions. I expected it to work especially when Microchip's website tells us to buy the ICD3 for new development since future micro-controllers may not be supported by the ICD2. I followed the installation instructions for MPLAB V8.36 and found that Windows could not find a USB driver when I manually browsed to C:\Program Files (x86)\Microchip\MPLAB IDE\ICD3\Drivers. Notice that I'm running the Windows 7 proffesional XP mode. I upgraded to MPLAB V8.50 and still could not find a driver. I looked through all the forum messages in the Microchip support forum and posted a message. But there is no reply from several weeks now. I opened a support ticket last week on the direct support requests. I still don't have a response. Perhaps there is someone in the PICList who has the ICD3 working in Windows 7. If so, I would like to know where the driver was found and what they did to get the ICD3 recognized. I think if I knew where the driver was, or where to download it, then I could get the ICD3 to work. I understand the the later ICD2 versions use a Cypress USB chip that is not supported with a Windows 7 driver. Any evidence the the ICD3 works with Windows 7 would be appreciated. I really regret the alternative of maintaining my 8 year old XP system just to write code on. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist