According to this docs https://docs.microsoft.com/en-us/intune/lob-apps-windows Microsoft Intune supports passing command-line arguments to MSI package: "Command-line arguments: Optionally, enter any command-line arguments that you want to apply to the .msi file when it runs. An example is /q." Given that the simplest way to provide the license key might be via command-line. Please specify the following arguments for MSI: VOUCHER=XXXX-XXXX-XXXX-XXXX-XXXX /qb where "XXXX-XXXX-XXXX-XXXX-XXXX" should be replaced with your actual license key code. "/qb" option will enable silent installation.
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