Windows 7 64-bit and Home Theater Master MX-800
I recently found myself with no computers at the house that still had a serial port. This was a problem when trying to program via a serial interface for a Home Theater Master MX-800 remote. I initially ordered and tried the Cables Unlimited USB-2920 USB 2.0 to Serial DB9 Adapter and it simply didn't work. After doing a little more research, I decided to purchase the slightly more expensive Keyspan High Speed USB Serial Adapter (USA-19HS). When it arrived, I inserted the CD and didn't see a Windows 7 driver and there were no instructions. I went to the Keyspan website and found/installed the Windows 7 beta driver. I plugged in the adapter, started the MX-800 software and configured it to match the serial port (in my case COM6) and it worked perfectly!