The Siemens part number 6AV6381-2BP07-2AX0 refers to WinCC system software V7.2, RC 2048. 

Runtime/Configuration software on DVD

Floating license with a USB license key

Supports 2048 PowerTags

Languages: German, English, French, Spanish, Italian

Compatible with:

Windows XP Professional SP3 (32-bit)

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

Windows Server 2003 SP2 (32-bit)

Server 2008 SP2 (32-bit)

Server 2008 R2 SP1 (64-bit)

Product status: Discontinued as of October 1, 2023, with no direct replacement