Install Addin in Excel

[Jos Vens]

Hi,

I made an addin for Excel and I want to distribute it to my customers. I
use a setupprogram (InnoSetup) and for the installation, I automatically
open an excel document that installs the addin and closes itself and Excel
again.

I was now installing the codecleaner utility from Rob Bovey, and I mentioned
that the addin came in Excel without opening Excel. I was wondering how
this can be done?

Thanks
Jos Vens