Vatsim/RC4 and Windows 7

[Holclo]

Having been aware of the thread "Separation of Sounds for FS9" and indeed having followed the advice, purchased a USB dongle, and had it all running brilliantly on Windows XP, I have just upgraded to Windows 7. Has anyone been successful in separating Vatsim or RC4 audio running within FS9 using this method? I run FS via one computer so using another PC isn't an option for me.
Bill

[Holclo]

Just an updateto my own post above. Using the method very similar to the "XP" method I now have had success of a sort. Vatsim incoming and outgoing sounds now only through headset and FS sounds through main sound speakers. Only problem is the incoming audio is very loud to the point where transmissions are difficult to understand and I haven't yet been able to soften it.Selecting the USB device (headphones) and reducing its volume to almost zero has no effect.
Bill
PS - Ah I think its done within "Squawkbox".