diff --git a/docs/manual/installation.sgml b/docs/manual/installation.sgml
index 6e25f3bc..9ebffbca 100644
--- a/docs/manual/installation.sgml
+++ b/docs/manual/installation.sgml
@@ -109,6 +109,7 @@ See section <ref id="commandline" name="Command Line Options"> for details on th
 Remember to add GnuGk as an exception for the Windows Firewall so it can communicate freely with the network.
 
 <sect2>Installing as a Service
+<label id="winservice">
 <p>
 These are the steps for a manual installation; there may be a binary version of the Gatekeeper-as-service which includes a GUI
 installer program available in the download location.
diff --git a/docs/manual/reference.sgml b/docs/manual/reference.sgml
index 95beecb8..35dac9bc 100644
--- a/docs/manual/reference.sgml
+++ b/docs/manual/reference.sgml
@@ -7,6 +7,11 @@ a setting from the configuration file.
 For example, the option <tt/-l/ overrides the setting <tt/TimeToLive/
 in the configuration file.
 
+Please note, that when installing GnuGk as a
+<ref id="winservice" name="service on Windows">,
+you only have the configuration file <tt/gatekeeper.ini/ and not the
+command line options available.
+
 <sect1>Command Line Options
 <label id="commandline">
 <p>