Kaseya is just pushing the install silently using /silent and /norestart as switches. It is using the latest .EXE but nothing is being installed on the machine.
I cant speak to how Kaseya handles a deployment. The lone correction I would make to your switches is that its not /norestart its /noreboot.
That, however, should not break an install.
That said, you can test that a silent install does indeed work with a batch file:
https://cdn.stardock.us/support/uploads/silentinstallstart10Only.zip
You just need to edit the batch file to include your email and key where specified.
Sean Drohan
Stardock Support Manager