title: This version...is not compatible with the version of Windows you're running
body: <p>I am a non-admin user on a Windows 7 (32 bit) computer, and also an admin user on a Windows 7 64-bit computer. I am trying to build the Vim text editor from source code to install on the 32-bit machine (to a place I have access, like C:\Vim).</p>
  
  <p>Now, I have successfully built both a 64-bit and 32-bit version of Vim on my 64-bit computer. Both of them run fine on the 64-bit computer. I can verify with "dumpbin.exe" as detailed <a href="http://blogs.technet.com/b/windowshpc/archive/2009/03/27/how-to-tell-if-a-exe-file-is-a-32-bit-or-64-bit-application-using-dumpbin.aspx" rel="nofollow">here</a> that the 32-bit build really actually is a 32-bit build. Doing ":version" within Vim while running the 32-bit build also confirms this.</p>
  
  <p>But when I try running that same executable on the 32-bit machine, I see "<strong>This version of gvim.exe is not compatible with the version of Windows you're running. Check you computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher</strong>." For kicks, I tried the 64-bit build of Vim and got the same message. I tried setting compatibility mode on the executable before running it, but get the same result. Additionally, only "Windows Server 2008" and a few version of "Windows Vista" appear in the list of compatibility modes: I was going to try Windows XP but it does not appear in the list.</p>
  
  <p>Now, when I download an installer from cream.sf.net instead of trying to build my own Vim, Vim installs fine and then launches fine. I can see the full list I originally expected in the compatibility mode list of the installed executable. So I must be doing something wrong when I build.</p>
  
  <p>The only difference I can think of, is that I'm compiling on a 64-bit machine, and using Visual Studio 2010 rather than Cygwin to build. But it is very strange that neither the 32-bit nor the 64-bit build works; I would always expect at least one of them to work! What could I be doing wrong?</p>