Version 3.1 (19 December 2011 released)

• added digital signed for ocx and exectuable of installer files.
• fixed c#2010, vb.net 2010 samples cannot run on 64 bit OS issue.

Version 3.0 (07 Jan 2011 released)

• 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.