You should be building separate MSIs for both arcitectures: http://blogs.msdn.com/b/heaths/archive/2008/01/15/different-packages-are-required-for-different-processor-architectures.aspx
so build an x86 Dll for 32-bit systems and an x64 Dll for 64-bit. In any case, AnyCpu for a Dll actually means "run with the bitness of the caller". and in a 32-bit setup the most likely reason for what you're seeing is that the 32-bit setup is propagating its 32-bit state into the custom action process that calls your Dll. --------------- Phil Wilson On Thu, Jan 8, 2015 at 6:39 AM, Phill Hogland <phogl...@rimage.com> wrote: > Regarding the comments about using "AnyCPU" this blog explains one reason why > on a x64 system AnyCPU runs a 32 bit instance of .Net > http://blogs.microsoft.co.il/sasha/2012/04/04/what-anycpu-really-means-as-of-net-45-and-visual-studio-11/ > > > > > -- > View this message in context: > http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/CustomAction-built-for-AnyCPU-does-not-read-64-bit-registry-hive-tp7598754p7598769.html > Sent from the wix-users mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > Dive into the World of Parallel Programming! The Go Parallel Website, > sponsored by Intel and developed in partnership with Slashdot Media, is your > hub for all things parallel software development, from weekly thought > leadership blogs to news, videos, case studies, tutorials and more. Take a > look and join the conversation now. http://goparallel.sourceforge.net > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
