Re: [WiX-users] How to test rollback?

[Richard <leg...@xm...>]

You can test rollback by putting a custom action of type 19 (fail) at
the end of your install transaction, right before InstallFinalize.
Put a condition on this action this is normally false, so you can set
a public property from the command line to force rollback.  This is
the best way to test custom actions that modify the system and have a
corresponding rollback action to undo the modification.
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