The NCH site gives the following requirements for soundTap:
System Requirements
Windows 2000**, XP, Vista++
Mac OS X 10.4 and above.
** For technical reasons Windows 2000 only supports recording what you play not the input side (for, for example call recording). Windows XP and Vista supports both.
++ Windows Vista 64 Bit is not supported.
So, I assume it should also work on Windows XP Pro64. I installed it okay and when it is started (before any streaming application of course) it reports that it was initialized and that recording mode is off. However, I have yet to be able to record anything (don't have a mic so haven't tried that).
If I go to the control panel, click Sounds and Audio Devices then click the Audio tab, I don't see SoundTap listed anywhere, even if I activate the drop down lists.
Do I need a special driver for Win XP Pro 64?