1) http://wixtoolset.org/documentation/manual/v3/xsd/wix/majorupgrade.html
My MajorUpgrade element looks like this: <MajorUpgrade DowngradeErrorMessage="A more recent version of [ProductName] is already installed." Schedule="afterInstallInitialize" /> So presumably your Product element has a Version attribute that would be something like "1.0.0". Say this is installed on client machines, and you need to upgrade them. You would then increment the Version to something like "1.0.1" (or whatever it appropriate), then when clients try to install the new msi package, it will detect that there is 1.0.0 installed already, remove it, and install 1.0.1. 2) Maybe this? http://stackoverflow.com/questions/488620/wix-major-upgrade If you've built your own WiX installer, you're not much more of a newbie than I am. :-) -----Original Message----- From: nkshirsagar [mailto:nkshirsa...@gmail.com] Sent: Tuesday, September 24, 2013 09:25 To: wix-users@lists.sourceforge.net Subject: Re: [WiX-users] Need some help with upgrade support in first version of MSI can you provide any details? I'm a wix newbie. I'm using wix 3.7. What do I need to 1) Make sure my msi can support future upgrades 2) When the next msi installs, one of the files must not be changed (its a data file, I need to keep it as it is.. ) please help ! -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Re-Need-some-help-with-upgrade-support-in-first-version-of-MSI-tp7589171p7589172.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users