Excel OnConnection custom parameter

[Arno]

Hello,

does anybody know that meaning of the OnConnection SAFEARRAY** custom
parameter? It is filled with various things depending on the
circumstances in which OnConnection is called. Here is what I found:

- it is empty when invoked as Automation add-in via
=ServerName.ClassName.Function(...)
- custom[1]=(long)3 when invoked via /Automation ServerName.ClassName
on the command line
- custom[1]=(long)1 when invoked as regular COM add-in.

It would be nice to have an authoritative word on it. Are there any
docs on that?

TIA,

Arno