Supported operating system:

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

Release note:
DELL Studio Laptop 1745 sound card version 6217 driver for Vista/Vista-64/Win7/Win7-64 released on 12th Dec 2009.

Supported Devices:
IDT High Definition Audio CODEC
SigmaTel High Definition Audio CODEC