Are you using delay-signing? If so is it possible that mycustom.dll was delay-signed without being real-signed.
Strong name signing should work fine for mycustom.dll (but not mycustom.CA.dll since that is not a .NET assembly). The tricky thing is you have to make sure the managed assembly gets fully signed before being packed up in the .CA.dll. This may require some customization of your project's build process, depending on how you have integrated signing. Or you can disable strong name signing for that assembly, if that is acceptable within your product's policy. When you say "all binaries are signed" I guess you are referring to authenticode signing? That's totally separate from strong name signing and definitely unrelated to the error. -Jason- -----Original Message----- From: Lian Jiang [mailto:lji...@microsoft.com] Sent: Wednesday, July 22, 2009 8:13 AM To: General discussion for Windows Installer XML toolset. Subject: [WiX-users] strong name for C# custom action project Hi, My msi uses custom action from C# custom action project. As you know, as C# custom action project will generate mycustom.dll and mycustom.CA.dll. The former is managed and the later is unmanaged. In my project, all binaries (including mycustom.dll and mycustom.CA.dll) are signed and the msi is not. When I installed the msi, it threw below exception: Error: could not load custom action class My.CustomActions from assembly: My.CustomAction System.IO.FileLoadException: Could not load file or assembly 'My.CustomAction, Version=1.0.82.0, Culture=neutral, PublicKeyToken=31bb5956ad364e35' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A) File name: 'My.CustomAction, Version=1.0.82.0, Culture=neutral, PublicKeyToken=31bb5956ad364e35' ---> System.Security.SecurityException: Strong name validation failed. (Exception from HRESULT: 0x8013141A) The Zone of the assembly that failed was: MyComputer at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.AppDomain.Load(String assemblyString) at Microsoft.Deployment.WindowsInstaller.CustomActionProxy.GetCustomActionMethod(Session session, String assemblyName, String className, String methodName) How can I make my msi work? Should I disable strong name sign for mycustom.dll and mycustom.CA.dll? Appreciate your help. Thanks Lian ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
