Detect installation path of Epic Launcher in Windows 8


I’m doing some bootstrap automation of my project and I need to detect UnrealVersionSelector in order to generate VS solution files from .uproject.
I looked at windows registry, c:\ProgramData\Epic, some other places in c:\Users\User…, and I wasn’t found any config files or other pointers to my Epic Launcher folder.

UE4 installation info can be found in c:\ProgramData\Epic, but not launcher paths.
(Yep, I have custom installation path of Epic Launcher. Not default c:\Program Files( x86)…)

Any help with this?