DOC: add some details about building with a standalone package.

Documentation/Cookbook/rst/Installation_Windows.txt

@@ -34,6 +34,12 @@ package, you should first uninstall the specific OTB files from the package to
 leave only the dependencies (what we call an XDK). You can do it using the
 supplied script ``tools/uninstall_otb.bat``.
 
+In the package you also have a template project for Visual 2015
+``OTB Project.zip``. This template can be placed in your user Visual 2015 template
+directory : ``%USERPROFILE%\Documents\Visual Studio 2015\Templates\ProjectTemplates``.
+The script ``start_devenv.bat`` allows to copy the template in that folder and
+start Visual Studio.
+
 Python bindings
 ~~~~~~~~~~~~~~~
 

Documentation/SoftwareGuide/Latex/Installation.tex

@@ -220,6 +220,14 @@ If you do not know which method to use and just want to compile OTB with all its
 \end{tiny}
 \end{center}
 
+If you want to use a standalone binary package, a lot of dependencies are already
+supplied in it. In this case, it is advised to use all of the dependencies from
+that package. Mixing system libraries with libraries from OTB package may not
+be safe. When you call the \textit{otbenv} script in the package, it will add
+an environment variable \texttt{CMAKE\_PREFIX\_PATH}, pointing to the root of the
+OTB package. This variable is used by CMake as a hint to detect the dependencies
+location.
+
 \subsection{SuperBuild: Build OTB and all dependencies}
 \label{sec:installation-linux-superbuild}