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A Space for All Things .NET Related


By James Hippolite, in , posted: 17-Jan-2013 12:02


  • I've built a .NET 4.0 Windows Forms app...
  • I've added it to a .NET 4.0 Setup project...
  • My DEV PC has .NET 4.0 Framework installed...
  • When I attempt to install the resultant .msi, I get an error message...

System.BadImageFormatException: Could not load file or assembly...This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded.


  • On a DEV VM
  • 32 bit
  • Windows 7
  • Visual Studio 2010.



  • The Setup project has a folder for Detected Dependencies...
  • In there is listed Microsoft .NET Framework...
  • When you double-click that, you get a Launch Conditions window...
  • Under Launch Conditions, is listed the .NET Framework version...
  • This was set incorrectly.

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Comment by reven, on 17-Jan-2013 13:18

I get this a lot trying to load a 32bit DLL in a 64bit/AnyCpu(on 64 bit machine) binary.
fix for that is set the project to 32bit.

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James Hippolite
New Zealand

Welcome to my technical blog. 

Here, I attempt to distill the Microsoft Certified Professional Developer knowledge I have accumulated since first qualifying MCP in 1996.  This blog started on 13 September 2007 as an off-shoot from my mixed up personal blog.  But it took a shot in the arm from Scott Hanselman's talk at TechEd New Zealand 08 "32 Ways To Make Your Blog Suck Less".