diff --git a/reference/mysql/functions/mysql-connect.xml b/reference/mysql/functions/mysql-connect.xml
index 10e7ec18fd..670cf6364a 100644
--- a/reference/mysql/functions/mysql-connect.xml
+++ b/reference/mysql/functions/mysql-connect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.22 $ -->
+<!-- $Revision: 1.23 $ -->
 <refentry xml:id="function.mysql-connect" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>mysql_connect</refname>
@@ -251,6 +251,15 @@ mysql_close($link);
     to the function name.
    </para>
   </note>
+  <note>
+   <para>
+    Error "Can't create TCP/IP socket (10106)" usually means that the <link
+    linkend="ini.variables-order">variables_order</link> configure directive
+    doesn't contain character <literal>E</literal>. On Windows, if the
+    environment is not copied the <literal>SYSTEMROOT</literal> environment
+    variable won't be available and PHP will have problems loading Winsock.
+   </para>
+  </note>
  </refsect1>
 
  <refsect1 role="seealso">
diff --git a/reference/mysqli/functions/mysqli-connect.xml b/reference/mysqli/functions/mysqli-connect.xml
index 81357e75f6..67874e6625 100644
--- a/reference/mysqli/functions/mysqli-connect.xml
+++ b/reference/mysqli/functions/mysqli-connect.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.24 $ -->
+<!-- $Revision: 1.25 $ -->
 <refentry xml:id="function.mysqli-connect" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>mysqli_connect</refname>
@@ -169,6 +169,19 @@ Host information: Localhost via UNIX socket
   </screen>
  </refsect1>
 
+ <refsect1 role="notes">
+  &reftitle.notes;
+  <note>
+   <para>
+    Error "Can't create TCP/IP socket (10106)" usually means that the <link
+    linkend="ini.variables-order">variables_order</link> configure directive
+    doesn't contain character <literal>E</literal>. On Windows, if the
+    environment is not copied the <literal>SYSTEMROOT</literal> environment
+    variable won't be available and PHP will have problems loading Winsock.
+   </para>
+  </note>
+ </refsect1>
+
 </refentry>
 
 <!-- Keep this comment at the end of the file