Chris, Well, it looks like you've found a workaround for now: just uninstall the old version before installing the new one. It isn't pretty, but it seems to be working for you. Sometimes, that's just what you have to do when you're migrating from one toolset to another.
But if you want to keep digging and see if there is something we can do in the new version to get the old version to play nice in a Major Upgrade, you'll need to decompile the old installer with WiX's "Dark" tool (I recommend the -sct and -sui options to reduce the "noise"), to get to the details I asked for earlier: - the CustomAction element that describes what the custom action does - all *Sequence/Custom and/or UI/Publish element(s) that schedule the action and specify the conditions under which it should run I'll also need to know when the RemoveExistingProducts action is scheduled in your new installer, since some of the "later" scheduling options could be problematic. Now that I know that this is a VS Installer and may be using some VS-supplied custom action DLLs, it is possible that the old version is making some assumptions that its future version will be a VS Installer too, but we won't know until we see its source code. Regards, Mike -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Strange-Beahaviour-while-installing-previous-Version-tp7594117p7594156.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
