Supported operating system:

Windows XP 32-bit
Windows Vista 32-bit
Windows Vista 64-bit
Windows 7 32-bit
Windows 7 64-bit

Release note:
Microsoft LifeChat earphone version 1.4 driver for WinXP/XPMCE/Vista/Vista-64/Win7/Win7-64 released on 17th Oct 2009.

Adds Win7, Win7-64 support and take out WinXP-64 support.

Supported Devices:
Xbox 360 Controller for Windows
Xbox 360 Wireless Controller via Play & Charge Kit
Xbox 360 Wireless Receiver for Windows