What are these registry keys?

[vefatica]

I have 106 registry keys like this one. Does anyone know what they are?

 

[Alpengreis]

I have NO keys there, not one!

Also AI_IA_ENABLE key(s) doesn't exist here somewhere else.

See also here: Windows Registry

So MAYBE they are from v19 only ...

 

[rconn]

Windows Installer.