Nick, thanks for the reply. I'm importing the old DLL into my custom action DLL using DllImport(), because Visual Studio won't allow me to add it as a reference to the project. I'm not entirely sure why, but I suspect it is because the old DLL is unmanaged code (written in Delphi 2007). I'm pretty sure my problem would disappear if I could add it as a reference as you suggest, but it doesn't seem possible.
The second suggestion might work. I suppose I could install the DLL as a component, run the custom actions, and then delete the DLL. However, some of the custom actions that use this DLL really should run before anything gets installed (for example validating that the user's license file is valid). On the surface it seems it should be simple. I just need a way to have the old DLL bundled into the MSI and to be unpacked into the temporary installation folder along with the custom action DLL. If it's there, then the custom action DLL will be able to find it. I thought of another possible solution. Can someone point me to documentation about writing custom actions in unmanaged code? Specifically, about how to pass parameters from WiX to unmanaged code? I'm thinking that maybe I could take the old Delphi code that's in that DLL and redo the interfaces so they're in the format for custom actions. Then I could use the Delphi DLL as a custom action DLL directly and the problem would disappear. I have access to Delphi for doing this and have time to write new interfaces. -- View this message in context: http://windows-installer-xml-wix-toolset.687559.n2.nabble.com/Including-third-party-DLLs-for-installer-to-use-tp7585415p7585419.html Sent from the wix-users mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
