TuneLab 97

The Original Shareware Piano Tuning Program for Windows.
 

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The TuneLab 97 program uses standard multimedia hardware, which is built-in to most laptop computers, to help you to tune pianos.  It runs under any version of Windows.  It is available as shareware by downloading it right now: 

This downloads a single file, TuneLab97-3.07Setup.EXE, which will install TuneLab 97 on your Windows computer.  This download includes the TuneLab 97 program and many historical temperament files.

Multiple Audio Devices in One Computer?

How TuneLab 97 Works

Calcul8 by David Porritt

Recent Release Notes