DetectSpeakers.exe,  Version 1.00
Check if speakers or headphones are connected

Usage:    DetectSpeakers.exe

Notes:    Return code ("errorlevel") equals the number of active
          audio output devices detected, or -1 in case of errors.
          This program uses NAudio by Mark Heath et al.
          NAudio files required (in this program's parent folder) are
          NAudio.Core.dll, NAudio.Wasapi.dll, NAudio.WinForms.dll and
          NAudio.WinMM.dll, all included in this program's ZIP file.
          Consider this program experimental: it had only limited
          testing, due mainly to my computer's limited audio hardware.

Credits:  NAudio library for .NET by Mark Heath et al
          https://github.com/naudio/NAudio

Written by Rob van der Woude
https://www.robvanderwoude.com