Index: src/site/apt/vss.apt
===================================================================
--- src/site/apt/vss.apt	(revision 556333)
+++ src/site/apt/vss.apt	(working copy)
@@ -33,3 +33,27 @@
 -------
 scm:vss|C:\Program Files\Microsoft Visual Studio\VSS|/SomeProject
 -------
+
+* Provider Configuration
+
+  The provider configuration is defined in ${user.home}/.scm/vss-settings.xml
+
+** VSS Installation directory
+
+  The provider needs to know the installation path of the ss.exe in order to fulfill VSS commands. The installation path can be set in two ways - either in the vss-settings.xml file:
+
+-------
+<vss-settings>
+  <Settings>
+    <vssDirectory>ss_exe_directory</vssDirectory>
+  <Settings>
+</vss-settings>
+-------
+
+  or on the command line:
+
+-------
+mvn -DvssDirectory=ss_exe_directory scm:update
+-------
+
+  In either case, ss_exe_directory should be set to the full path to the directory where ss.exe resides (e.g. C:\Program Files\Microsoft Visual Studio\VSS\bin).