Obsolete variable; retained only for backwards compatibility with MSI projects imported from Tarma ExpertInstall. InstallMate sets this variable to the installer's user interface level, which is based on one of the following values TsuQuiet variables:

Value Description TsuQuiet
2 Completely silent installation 2
3 Simple progress and error handling only 1
4 User interface without wizard dialogs n/a
5 Full user interface 0


You can refer to this variable as <UILevel>. In conditional expressions you can omit the brackets and use tests like UILevel < 4 to test for a silent installation. However, we recommend that you use TsuQuiet instead. This variable is initialized from the command line options and used internally by the installer.

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