diff --git a/chapters/install.windows.xml b/chapters/install.windows.xml
index a0a9fb6f16..cc5d195af2 100644
--- a/chapters/install.windows.xml
+++ b/chapters/install.windows.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.17 $ -->
+<!-- $Revision: 1.18 $ -->
   <sect1 id="install.windows">
    <title>Installation on Windows systems</title>
    <para>
@@ -563,6 +563,10 @@
       order to build the code necessary for integrating PHP with
       Microsoft IIS.
      </simpara>
+     <simpara>
+      It is possible to do minor customization to the build process by editing
+      the main/config.win32.h.in file.
+     </simpara>
     </sect3>
    </sect2>