Descobrir se versão Classic ou Super instalada?

Encontrei o que procurava, se alguém mais precisar, aí está a resposta:

Classic:
---------
Exe executado é fb_inet_server.exe


Superserver:
---------------
o executável é: fbserver.exe

No Firebird 3.0 é possível identificar o modo de arquitetura instalado através do arquivo firebird.conf (C:\\Program Files\\Firebird\\Firebird_3_0). No final do arquivo é exibido o modo:

# ============================
# Settings for Architecture Configuration
# ============================

#
# Controls the method Firebird engine uses to work with databases and
# related Firebird server startup parameters.
#
# The values are:
# Super / ThreadedDedicated - databases are opened exclusive by single server process,
# attachments share single DB pages cache inside process
# SuperClassic / ThreadedShared - databases are opened by single server process,
# but it does not prevent opening them in other processes (embedded access),
# each attachment has its own DB pages cache
# Classic / MultiProcess - for each attachment to server a separate process is started,
# each database may be opened by multiple processes (including local ones for
# embedded access), each attachment (process) has its own DB pages cache
#
# Type: string
#
#ServerMode = Super
ServerMode = SuperClassic