To do an unattended or silent install of a CETDesigner.msi, execute this command in Window's command terminal:

msiexec.exe /i “CETDesigner.msi” /qb CET_VERSIONID=64-bit TRANSFORMS=:InstanceId01

The reason for the extra arguments is that CET supports parallel installation of multiple instances (with different version-id).

Arguments

• CET_VERSIONID
  This is the Version-id used for the installation. Default is “64-bit”, but beta versions have different version id:s. Usually the version id will be included in the file name of the msi, prefixed by a hash-sign, for example "CET 9.5.0.3 64-bit#MyBetaVersion-64-bit.msi" where the version id in this case is “MyBetaVersion-64-bit”. When installing the msi using the UI, the version id after the hash-sign will be automatically used, but for silent install it must be specified manually using this argument.
  
  
• TRANSFORMS
  This argument can be anything between “:InstanceId01” and “:InstanceId20” and must be unique for each installation. When installing msi:s from the UI it will be automatically increased for each installation so the first one is “:InstanceId01”, the second one is “:InstanceId02” and so on. But when installing silently, it must be manually set to a value that hasn’t already been used (using an already installed Instance id will give error message from the installer).

Optional Argument

• LAUNCH_CET_AFTER_INSTALL=1
  Add this to the command line if you want CET to be launched after installation completed.