The Siemens part number 6AV6381-2BN07-2AV0 refers to SIMATIC WinCC system software V7.2 Asia, RC 512. 

Runtime/Configuration software supporting up to 512 PowerTags

Floating license model

Delivered on DVD with a USB flash drive containing the license key

Supports 5 Asian languages: English, Simplified Chinese, Traditional Chinese, Korean, and Japanese

Compatible with legacy operating systems:

Windows XP Professional SP3 (32-bit)

Windows 7 Professional/Enterprise/Ultimate SP1 (32/64-bit)

Windows Server 2003 SP2, Server 2003 R2 SP2 (32-bit)

Windows Server 2008 SP2 (32-bit)

Windows Server 2008 R2 SP1 (64-bit)

Classified as a Class A product (standard stock item)