You are mixing to things in your condition: - Property Installed is telling us if product is installed or not - &Feature is telling us to what state feature is changing from its current state
This important to understand because user may select a feature to be installed during fresh install of the product or select to install a feature during maintenance installation (during fresh install feature has not been selected for installation). If what you want is to run custom action on feature installation regardless of fresh install or maintenance install, you should not include property Install in the conditional statement. Now, regarding valid value for &Firebird. According to http://msdn.microsoft.com/en-us/library/aa368012(VS.85).aspx, value 3 indicates that the feature is about to be installed locally and value 4 means that the feature is about to be installed to run from source. If you want to cover both cases in your condition for custom action, then condition should look like: &Firebird=3 Or &Firebird=4 Regards, Alex -----Original Message----- From: Frank Cohen [mailto:frankensp...@gmail.com] Sent: Wednesday, December 31, 2008 8:20 AM To: General discussion for Windows Installer XML toolset. Subject: [WiX-users] Detecting if a feature is marked for install The name of my feature is called "Firebird". I want the action to run if the component has been selected and not installed. Here is what I have: <Custom Action="RunFirebirdInstaller" Before="InstallFinalize" > <![CDATA[NOT Installed AND NOT &Firebird=0]]></Custom> This is what I get: DEBUG: Error 2753: The File 'Firebird_Installer' is not marked for installation. What is the syntax I am supposed to be using here? ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users