DOCS-155 adding notes to the windows tutorial to reflect Tad's commentss.

Author: Sam Kleinman

source/tutorial/install-mongodb-on-windows.txt

@@ -174,11 +174,17 @@ insert a record in the ``test`` :term:`collection` of the default
 MongoDB as a Windows Service
 ----------------------------
 
-.. versionadded:: 2.1.1
+.. versionadded:: 2.0 
 
 Setup MongoDB as a :guilabel:`Windows Service`, so that the database
 will start automatically following each reboot cycle.
 
+.. note:: 
+   
+   :program:`mongod.exe` added support for running as a Windows
+   service in version 2.0, and :program:`mongos.exe` added support for
+   running as a windows service in version 2.1.1.
+
 Configure the System
 ~~~~~~~~~~~~~~~~~~~~
 
@@ -197,7 +203,7 @@ Service: a path for the log output (i.e. :setting:`logpath`) and a
 
    .. code-block:: powershell
 
-      echo logpath=C:\mongodb\log > C:\mongodb\mongodb.cfg
+      echo logpath=C:\mongodb\log > C:\mongodb\mongod.cfg
 
 While these optional steps are optional, using the configuration file,
 and creating a specific location for log files are good practice.
@@ -221,8 +227,15 @@ Run all of the following commands in :guilabel:`Command Shell` with
 
    .. code-block:: powershell
 
-      C:\mongodb\bin\mongod.exe --config C:\mongodb\mongodb.cfg  --install
+      C:\mongodb\bin\mongod.exe --config C:\mongodb\mongod.cfg --install
+
+   Modify the path to the ``monogd.cfg`` file as needed. For the
+   ``--install`` option to succeed, you *must* specify a 
+   :setting:`logpath` setting or the :option:`--logpath <mongod --logpath>` 
+   run-time option.
 
+   .. TODO fix --install link once mongod.exe manual page exists.
+   
 #. To run the MongoDB Service:
 
    .. code-block:: powershell