Trim down environment variable instructions for Win32, backpatch to 8.2.X.

doc/src/sgml/libpq.sgml

-<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.226 2007/02/04 04:00:28 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.227 2007/02/05 22:18:11 momjian Exp $ -->
 
  <chapter id="libpq">
   <title><application>libpq</application> - C Library</title>
@@ -4357,12 +4357,11 @@ installs too. The file's location can also be specified by the
 <envar>PGSYSCONFDIR</envar> environment variable.
 </para>
 
+<hint>
 <para>
-To set an environment variable on Windows, from <literal>My Computer</>,
-choose <literal>View System Information</>, and from the <literal>Advanced</>
-tab, choose <literal>Environment Variables</>, then add a user or system
-variable.
+Environment variables on Windows are set as a property of <literal>My Computer</>.
 </para>
+</hint>
 </sect1>