diff --git a/chapters/install.xml b/chapters/install.xml
index 58dc34fe40..385a7443c3 100644
--- a/chapters/install.xml
+++ b/chapters/install.xml
@@ -1,5 +1,5 @@
 <?xml encoding="iso-8859-1"?>
-<!-- $Revision: 1.85 $ -->
+<!-- $Revision: 1.86 $ -->
  <chapter id="installation">
   <title>Installation</title>
 
@@ -4109,6 +4109,18 @@ stop and start:
      </itemizedlist>
     </para>
 
+    <note>
+     <simpara>
+      In Apache 1.3.22 for Windows, the default configuration file 
+      (<filename>httpd.conf-dist-win</filename>) has
+      a <literal>ClearModuleList</literal> directive included
+      by default. If this directive is used, it is required
+      to put an <literal>AddModule mod_php4.c</literal> to
+      the <literal>AddModule</literal> list, as else PHP will
+      not be registered as an Apache module.
+     </simpara>
+    </note>
+    
     <simpara>
      To use the source code highlighting feature, simply create a PHP
      script file and stick this code in: <literal>&lt;?php show_source