Control Sound Volume of Playback Device, Recording Device on Windows 10, Windows 8, Windows 7 and Windows Vista. Enable/Disable mute function. Retrieve audio input devices information. (Mute Status, Min/Max/Current Volume Value) Object Base design, easily to use. Compatible with any programming language that supports ActiveX (Visual C++ , Visual Basic , Visual Foxpro, Delphi, .Net, etc.) support control speaker volume and microphone volume in window vista and window 7. added W7SetDeviceRightBalance, W7SetDeviceLeftBalance, W7SetDeviceVolume,W7GetDeviceRightBalance, W7GetDeviceLeftBalance, W7GetDeviceVolume, W7SetCurrentDevice, W7GetSpeakersName, W7GetSpeakersCount, W7GetMicrophonesName, W7GetMicrophonesCount, IsVistaWindows7 methods. Include c# 2015, c# 2010, VB.NET 2015, VB.NET 2010 , VB.Net 2003, VB Script, VB6 , VC 2010, VFP Sample source code. Compatible with any programming language that supports ActiveX (Access, Visual C , Visual Basic , Visual Foxpro, Delphi, .Net, etc.)