Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) SP3 @ 32-bit + Windows Vista Ultimate Edition SP1 @ 64-bit + Windows 7 Ultimate Edition RC1 @ 32-bit
OS: Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) SP3 @ 32-bit + Windows Vista Ultimate Edition SP1 @ 64-bit + Windows 7 Ultimate Edition RC1 @ 32-bit