Supported operating system:

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

Release note:
Lexmark PREVAIL PRO706 ALL IN ONE Printer version 3.2.7.3 driver for WinXP-64/Vista-64/Win7-64 released on 19th July 2010.

Supported Devices:
Lexmark Pro700 Series