Our Windows application (developed in Delphi) is shipped in 32-bit and 64-bit editions. Users can write plugins for it. If they target the 32-bit edition, the need to create a 32-bit dll. If they target the 64-bit edition, they need to target a 64-bit dll.
I would like to create a sample application in Visual Studio C++ that can be used as a reference to help hacking it.
I would like that the Visual Studio solution provided as an example is able to have everything in place to compile a sample dll both for Win32 and for Win64.
Which is the minimum (preferably free) Visual Studio C++ edition or version that I need to be able to compile both for Win32 and Win64. I tried with Visual Studio 2010 Express but it does not seem to let you add Win64 as a target platform.