As much as I love DTF, I don't see the need for a CA in this scenario. I believe you stated that the requirement is to detect products installed based on their upgrade code and block the install if a product is not detected.
If that is correct, then the Upgrade table supports the msidbUpgradeAttributesOnlyDetect attribute which allows you to do your search, put found product codes into the property specified in the ActionProperty column. As long as you schedule FindRelatedProducts prior to Launch Conditions, you could then use the above property as a conditional expression to block your install. Christopher Painter, Author of Deployment Engineering Blog Have a hot tip, know a secret or read a really good thread that deserves attention? E-Mail Me --- On Wed, 1/28/09, Eitan Behar <ei...@baconao.net> wrote: > From: Eitan Behar <ei...@baconao.net> > Subject: Re: [WiX-users] Detecting if a product is installed and setting > property > To: "General discussion for Windows Installer XML toolset." > <wix-users@lists.sourceforge.net> > Date: Wednesday, January 28, 2009, 8:04 AM > Thanks ! Sounds like I will use a DTF CA for that. > > > > > On Wed, Jan 28, 2009 at 3:21 PM, Yan Sklyarenko > <y...@sitecore.net> wrote: > > > If your product is the same family as those you're > detecting, then you > > might take advantage of FindRelatedProducts action: > > http://msdn.microsoft.com/en-us/library/aa368600.aspx. > > This is supported in WiX toolset via UpgradeVersion > element, which > > actually maps to the Upgrade MSI table, and > FindRelatedProducts element, > > which is there for sequencing purpose, as far as I can > see (never used > > it myself yet). > > > > If otherwise your product has nothing in common with > those you'd like to > > detect, then it might require custom action. DTF > contains a class > > ProductInstallation, which defines a method > > GetRelatedProducts(upgradeCode), it's probably > what you need (if your > > installation is compatible with managed custom > actions). > > That's just an assumption, there might be better > techniques for this. > > > > Hope this helps. > > > > -- Yan > > > > -----Original Message----- > > From: Eitan Behar [mailto:ei...@baconao.net] > > Sent: Wednesday, January 28, 2009 10:14 AM > > To: General discussion for Windows Installer XML > toolset. > > Subject: [WiX-users] Detecting if a product is > installed and setting > > property > > > > Hi, > > > > Is there a way to detect if a product family is > installed according to > > its > > product code, and set a property accordingly? I need > to stop the setup > > if > > certain products are not installed, and I only have > their upgrade codes, > > not > > the product code. > > > > Thanks, > > > > Eitan > > > ------------------------------------------------------------------------ > > ------ > > This SF.net email is sponsored by: > > SourcForge Community > > SourceForge wants to tell your story. > > http://p.sf.net/sfu/sf-spreadtheword > > _______________________________________________ > > WiX-users mailing list > > WiX-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wix-users > > > > > > > ------------------------------------------------------------------------------ > > This SF.net email is sponsored by: > > SourcForge Community > > SourceForge wants to tell your story. > > http://p.sf.net/sfu/sf-spreadtheword > > _______________________________________________ > > WiX-users mailing list > > WiX-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wix-users > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by: > SourcForge Community > SourceForge wants to tell your story. > http://p.sf.net/sfu/sf-spreadtheword > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
