How to silent install JanusWinFormsV4LicensedSetup.exe v4.0.36

Hi @Kong, Xiangzhuan

JanusWinFormsV4LicensedSetup.exe is a third-party Janus Systems installer, so Microsoft doesn't document a silent-install switch or a supported way to inject its serial number. Avoid assuming /S, /silent, or similar switches without confirming the installer's packaging.

First, check what the executable exposes:

JanusWinFormsV4LicensedSetup.exe /?
JanusWinFormsV4LicensedSetup.exe /help

You can also determine whether the EXE extracts or launches an MSI. If you can obtain the vendor-provided MSI, standard Windows Installer silent syntax would typically be:

msiexec.exe /i "package.msi" /qn /norestart /L*v "C:\Temp\JanusInstall.log"

Microsoft documents /quiet, /qn, /norestart, and logging for Windows Installer.

However, the serial/license activation is the important part. Don't guess an MSI property such as SERIALNUMBER= unless Janus documentation or the MSI's property table explicitly identifies it. Historical reports indicate Janus WinForms requires the license to be activated on the build machine, so installation and licensing may be separate operations.

Since you're installing into a Windows container, also confirm that the Janus v4 licensing mechanism supports non-interactive/containerized activation. If activation is tied to the machine, a normal silent installation alone may not produce a usable licensed build environment.

Reference: Microsoft - msiexec command-line options

If you can provide the output of JanusWinFormsV4LicensedSetup.exe /? or identify whether it contains an MSI, we can determine the appropriate silent command without guessing at unsupported switches.

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