The Siemens part number 6AV6381-2BM07-3AV0 refers to SIMATIC WinCC system software V7.3 Asia, RC 128. 

Runtime/Configuration software supporting up to 128 PowerTags

Floating license model

Delivered as a DVD + USB flash drive (license key)

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

Compatible with:

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

Windows 8.1 Standard/Professional/Enterprise/Ultimate (64-bit)

Windows Server 2008 R2 SP1 and Server 2012 (64-bit)

Classified as a Class A product (standard stock item)

This product was officially discontinued without replacement as of March 31, 2023.