[This is preliminary documentation and subject to change.]
Setting this property gives the user the option to continue at a later time a failed or cancelled installation or to do a rollback of the installation. This choice is presented to the user in the form of an error dialog box displayed before the final exit dialog box.
Command line, or authored into the Property table.
If ALLOWSUSPEND is not set, the default is to not display the dialog box following a failed or cancelled install and to do a rollback of the installation.
As with all error message dialogs, the suspend option dialog box will display even with a basic UI.