How do you tell if a plugin is a VST or DXi ?

Soundiron Emotional Piano is a case in point.

I've gone to the install folder and documentation and nary a mention of which it is or a "VSTi" in sight. Ditto the website.

It plays in Kontakt 5 player so I'm assuming its a VST2 which BIAB should play. In my naivete I used to think Kontakt only played VSTi but apparently plays DXi too. So fact Emotional Piano plays in my Kontakt Player isn't dispositive that its a VST.

Could it be its a DXi which would explain why I cannot find a VST associated with it ?

Reason I'm asking and connection to BIAB is I'm trying, so far with no success, to get it to play nicely with BIAB
and can't get the VST selection in Options to see it.

I'm trying to locate all my VST2's scattered (damit) over 6 drives- told you I was a Newb). Just searching Windoze search function doesn't seem to find them all.

Thinning hair almost on fire...

Newbie Bob