64-bit is not a problem, nearly everyone runs Windows 7 64-bit or Windows 8 64-bit or Windows 8.1 64-bit. I use Windows 7 64-bit myself. I can't even count how many EVE players use ISBoxer on Windows 7 64-bit. In fact, 64-bit isn't even relevant unless you're running a 64-bit program, and you're running a 32-bit program (EVE is 32-bit as well).

The problem is more likely to be your DirectX 9 install, which is what d3dx9_37.dll is from. Windows System Error Code 193 says
ERROR_BAD_EXE_FORMAT
193 (0xC1)
%1 is not a valid Win32 application.

-- where "%1" is d3dx9_37.dll. So it's saying that d3dx9_37.dll is bad.

Here's what I suggest doing: http://www.microsoft.com/en-us/downl...ils.aspx?id=35 This is the DirectX updater. Run it and it should replace the broken DLL file.