The Siemens part number 6AV6381-2BF07-2AV0 refers to SIMATIC WinCC system software V7.2 Asia, RT 65536. Here's what it includes:

Runtime software supporting up to 65,536 PowerTags

Single license model

Delivered on DVD with license key on USB flash drive

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

Compatible with legacy operating systems like Windows XP Professional SP3, Windows 7, Windows Server 2003/2008, and Server 2008 R2

Classified as a Class A product (standard stock item)