To determine the installed version of UE-V, use the value of HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\UEV\Agent\Version.


For Windows versions earlier than Windows 10 Anniversary Update (build 1607, OS build 14393.51) the current highest hotfix release is 2.1 SP1 HF02 (the April 2016 hotfix rollup for Microsoft Desktop Optimization Pack).

See this link for important information regarding licensing changes with the Windows 10 Anniversary Update.  As of this release, UE-V is now distributed with Windows.

Release

Version

Reference

Windows 10 Anniversary Update 10.0.10011.16384 Blog
2.1 SP1 HF02 (April 2016 hotfix rollup for MDOP) 2.1.665.0 314445

2.1 SP1 HF01

2.1.657.0

3115833

2.1 SP1

2.1.637.0

TechNet

2.1 (UE-V Generator)

2.1.556.0

TechNet

2.1 (UE-V Agent)

2.1.552.0

TechNet

2.0 HF1

2.0.319.2

2927019

2.0

2.0.319.0

TechNet

1.0 SP1

1.0.520.0

TechNet

1.0

1.0.414.10

TechNet


This information is also available in

https://support.microsoft.com/en-us/kb/3041879