I use the Cisco IP Communicator soft-phone when working from home, and although I am able to run version on Windows 7 x64 (using WoW64) I have had a very annoying issue whereby it will only display the default windows audio device as an option when going through the audio tuning wizard. This means that I have had to set my Plantronics CS60 hands-free usb headset as the default Windows audio device (rather than just the default communications device) which has the knock-on effect of playing all Windows sound through the headset – very annoying!

Luckily, after a quick Google of the issue, I found a post that suggested setting the compatibility mode for the communicator app to Vista SP2. I have since done this and can confirm that the USB headset is no listed as a separate option in the audio wizard dialogs – huzzah!