pcsoft.us.windevCopyright 2026, PC SOFT9 Jan 2015 13:31:43 Z13 Sep 2014 05:06:00 ZGreetings, I have a 64-bit Framework 4.0 C# assembly that works great until I use the WD DoNetDelegate. Then I get the following error: Error returned by .NET Framework: Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information. After many, many google searches, I only find that you need a .config file with startup parameters. However, adding that with a WD generated EXE file does not seem to use that .config file. So, I have done everything I can to make sure all references in my c# assembly use framework 4.0 (minimum for the SDK I am using) but still I get the error. When I select the system.dll file for reference from the 4.0 framework, it changes the path to be x86. I have found that if I add a WD .NET reference to System.dll first, it prevents the problem. But why? Any comments or suggestions would be appreciated30WEBDEVen_UShttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error/read.awpmoderateur@pcsoft.fr (El moderador)webmaster@pcsoft.fr (El webmaster)gvinpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-49825/read.awp9 Jan 2015 13:31:43 ZHi ! We had an .NET 2.0 dll used in our application and everything was working fine until we imported a .NET 4.0 dll. Since …https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-49825/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-49825/read.awpMixed Mode Assembly error in WDguestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48020/read.awp15 Sep 2014 17:13:00 ZHi Alexandre, There are many such posts and I have the useLegacyV2RuntimeActivationPolicy="true" in both a C# app.config and …https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48020/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48020/read.awpMixed Mode Assembly error in WDguestpcsoft.us.windevhttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48013/read.awp15 Sep 2014 15:09:00 ZHi Jeff, Maybe this post can help you: http://stackoverflow.com/questions/2455654/what-additional-configuration-is-necessary-…https://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48013/read.awphttps://forum.pcsoft.fr/es-ES/pcsoft.us.windev/48006-mixed-mode-assembly-error-48013/read.awpMixed Mode Assembly error in WD