Scripting

You could rip it open with ORCA and see what's up... or if this is the software : https://teach.mapnwea.org/impl/maphelp/Content/MAPSetup/Technology/DesktopOverview.htm

It doesn't look like the silent is in the .MSI, only the .EXE version?

1. Option A: To use the NWEA installer, use this syntax in your software deployment tool:

   "setup lockdown browser.exe" /v/qn

   Note: There's no space in the parameter /v/qn. You can also choose to run in silent mode by adding the /s parameter, which prevents the installation prompts:

   "setup lockdown browser.exe" /v/qn /s
2. Option B: To use the MSI package, first extract it from the download.

   1. At a command prompt, change to the download directory and type the extraction command:

      "setup lockdown browser.exe"/b"./
   2. Cancel the InstallShield prompt.

   3. Use this syntax in your software deployment tool (not compatible with the Microsoft Group Policy Object tool):

      MSIExec /i "NWEA Secure Testing Browser.msi" /qb ALLUSERS="1"

      Note: If you are overriding an existing installation, first uninstall the Lockdown Browser:

      MSIExec /x "NWEA Secure Testing Browser.msi" /qb ALLUSERS="1"

at first: Welcome new ninja!

The second one is: If you install a MSI you need to give the MSI specific parameters.
msiexec.exe /i MSINAME /qn would be the one you need.
Since MSI the default way you can use default install and uncheck don't prepend ...
And then the parameters would be /i /qn

All usual parameters you can find here:
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/msiexec

To be more comprehensive for all you new Ninjas that do not have the “old school” benefit of Jumpstart or QuickStart training, her is what we would have taught about setting up a silent Managed Installation in KACE.

Step 1 - we need to make sure that we attach the installation payload ( the msi file ) to the correct software inventory item, so first, manually install the software on a machine with the KACE installed and note what software inventory item then appears in the inventory.

Hint - you can use “show changes” to be really sure

Step 2 - Upload the MSI file to that software inventory item and make sure that all the operating system variants are also selected in the software item.

Step 3 - Find AND TEST the msi command line to install the software silently, do not just copy it from a website and hope it works!!

Step 4 - create the managed installation and in the installations option section, select to override the default inks t’allaitions command, paste in your tested command line and tick the do not prepend option.

You should be then good to go, but do not try to fast track the process or skip steps always

Install and identify

Upload and make sure settings are good

Test your installation command

manually setup the managed installation

In the words of the old saying, when it comes to managed installations it is always More Haste, Less Speed.

wesellis's answer had me get the results I wanted on a test machine. Just sent the command to rollout for use tomorrow, wish me luck all!