Rtw Mastering Tools V4.1.2 [win] -

Up to 8-channel PPM (Peak Program Meter), True Peak, and VU measurements.

Specifically Windows 7, 8.1, or 10 (64-bit). RTW Mastering Tools v4.1.2 [WiN]

Displays spectral content (up to 1/12th octave). Up to 8-channel PPM (Peak Program Meter), True

VST2.4, VST3, and AAX for DAW use, plus a standalone multi-channel application. and VU measurements. Specifically Windows 7