http://www.techrepublic.com/article/ftdi-uses-windows-update-to-disable-devi...
So you buy a USB-to-Serial device at the local big box, or your favorite mail-order firm, get it running some essential device, and a Windows Update zaps the device to uselessness. How would you feel about the vendor? How do you feel about the vendor that (perhaps inadvertently) used a counterfeit chip in their device? How about the OS vendor who shipped a "driver update" that broke the device?