If I go through the installer options interactively, I can deselect the option to launch the program at the end of the installation, but I can find no switch to disable the launching of the program at the conclusion of the install. I believe that this is a bug in the silent/verysilent install sequence, but probably not one most would run into.
The goal is to be able to deploy the software from our RMM which runs as the SYSTEM account and there is no reason to launch the program at the end as this is just deploying the software for future use.

We do not have such function.
In making future releases, we always take into consideration our customers' wishes. The feature you have requested is not implemented yet, so we have added your request to our wishlist.
Thank you for using our software!