Programs/Microsoft
Visual Studio/Tools/Command Prompt. Check that you can run <span style="font-family:monospace">cl</span>. 
</li><li class="li-enumerate">Ensure that <span style="font-family:monospace">ocamlc</span> refers to a Win32 version of ocaml. Run <span style="font-family:monospace">ocamlc
-v</span> and look at the path to the standard library. If you have several
versions of ocaml, you must set the following variables:
<pre class="verbatim">      set OCAMLWIN=C:/Programs/ocaml-win

      set OCAM