How can I use a single Visual Studio solution to build both x86 and x64 at the same time?

Question

I\'ve got an x86 Visual Studio solution with many project files in it. Some of the DLL files are designed to work as plug-ins to other applications on a user\'s system.

Answer 1

Importing a project in such manner works for me in Visual Studio 2010:

TestProject64.vcxproj

  
  
    
      Release
      x64
    
  
  
    {B7D61F1C-B413-4768-8BDB-31FD464AD053}
  

TestProject64.vcxproj.filters

TestProject.vcxproj has two configurations defined inside: Release|x86 and Release|x64. As you can see, TestProject64.vcxproj has only the Release|x64 configuration. Defining of at least one configuration in TestProject64.vcxproj is necessary, otherwise Visual Studio will not be able to add TestProject64.vcxproj to a solution.

Now it's possible to include both TestProject.vcxproj and TestProject64.vcxproj to the same solution and build Release|x86 and Release|x64 at the same time.