In order to use VR Mixer in Visual Basic 6.0, please register two components included here using regsvr32.exe as follows:

regsvr32.exe arsubclass.dll
regsvr32.exe vrmixer.ocx

If this method fails for any reason, run full setup using setup.exe which will also install components already included with VB6.

To unregister components run:

regsvr32.exe -u arsubclass.dll
regsvr32.exe -u vrmixer.ocx