[Info-vax] When does the -PCSI-I-SELGEN message appear?

[Peter 'EPLAN' LANGSTOeGER]

I recently installed an ECO and got a PCSI-I-SELGEN message (as expected).

Then I found out, that VMS83A_LOGIN-V0200 provides LOGINOUT.EXE and also
SETP0.EXE (as listed in the ECO cover letter and release notes) but only
gives only one SELGEN message for LOGINOUT.EXE

%PCSI-I-CMPGEN, resolved file conflict by comparing generation numbers
-PCSI-I-SELGEN, selected file [SYSEXE]LOGINOUT.EXE provided by DEC AXPVMS VMS83A_LOGIN V2.0
%PCSI-I-CMPGEN, resolved file conflict by comparing generation numbers

but nothing for SETP0.EXE
(was the SETP0.EXE on disk and in ECO kit identical then?)

and this raised the question, when (and how) a SELGEN message is issued.
Where are these generation numbers stored?

TIA

-- 
Peter "EPLAN" LANGSTÖGER
Network and OpenVMS system specialist
E-mail  Peter at LANGSTOeGER.at
A-1030 VIENNA  AUSTRIA              I'm not a pessimist, I'm a realist