There are several useful registry settings for the Touch Wisp component.

CURRENT_USER\SOFTWARE\MICROSOFT\Wisp\Touch

If we are working on .NET 4.7 & Windows 10
We can take advantage of the new touch engine (Not Wisp).

To enable the new touch engine on a WPF application, add the following to the app.config.

<configuration>
    <runtime>
        <AppContextSwitchOverrides value="Switch.System.Windows.Input.Stylus.EnablePointerSupport=true"/>
    </runtime>
</configuration>