A silent install of the CodeMeter Software since version 5.00a is possible with the following command:
CodeMeterRuntime.exe /ComponentArgs "*":"/qn"
A silent uninstall of the CodeMeter Software (as from 5.10a) is possible with the following command:
CodeMeterRuntime.exe /x /q
To see all the options, you enter in a CLI
CodemeterRuntime.exe /?