diff --git a/INSTALL.txt b/INSTALL.txt
index b4f48e4..62e4a4e 100644
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -4,60 +4,93 @@ How to Download and Install python-oletools
 Pre-requisites
 --------------
 
-For now, python-oletools require Python 2.x. 
-They are not compatible with Python 3.x yet.
+The recommended Python version to run oletools is Python 2.7.
+Python 2.6 is also supported, but as it is not tested as often as 2.7, some features
+might not work as expected.
 
+Since v0.50, oletools can also run with Python 3.x. As this is quite new, please
+report any issue you may encounter.
 
-For command-line tools
-----------------------
 
-To use python-oletools from the command line as analysis tools, you may simply
-download the latest release archive from
-https://github.com/decalage2/oletools/releases
-and extract the files into the directory of your choice.
+Recommended way to Download+Install/Update oletools: pip
+--------------------------------------------------------
 
-You may also download the latest development version from
-https://github.com/decalage2/oletools/archive/master.zip with the most recent
-features.
+Pip is included with Python since version 2.7.9 and 3.4. If it is not installed on your
+system, either upgrade Python or see https://pip.pypa.io/en/stable/installing/
 
-Another possibility is to use a git client to clone the repository
-(https://github.com/decalage2/oletools.git) into a folder.
-You can then update it easily in the future.
+### Linux, Mac OSX, Unix
+
+To download and install/update the latest release version of oletools,
+run the following command in a shell:
+
+sudo -H pip install -U oletools
+
+**Important**: Since version 0.50, pip will automatically create convenient command-line scripts
+in /usr/local/bin to run all the oletools from any directory.
 
 ### Windows
 
-You may add the oletools directory to your PATH environment variable to access
-the tools from anywhere.
+To download and install/update the latest release version of oletools,
+run the following command in a cmd window:
+
+pip install -U oletools
+
+**Important**: Since version 0.50, pip will automatically create convenient command-line scripts
+to run all the oletools from any directory: olevba, mraptor, oleid, rtfobj, etc.
+
+
+How to install the latest development version
+---------------------------------------------
+
+If you want to benefit from the latest improvements in the development version,
+you may also use pip:
 
 ### Linux, Mac OSX, Unix
 
-It is very convenient to create symbolic links to each tool in one of the bin
-directories in order to run them as shell commands from anywhere. For example,
-here is how to create an executable link "olevba" in /usr/local/bin pointing to
-olevba.py, assuming oletools was unzipped into /opt/oletools:
+sudo -H pip install -U https://github.com/decalage2/oletools/archive/master.zip
+
+### Windows
+
+pip install -U https://github.com/decalage2/oletools/archive/master.zip
+
+
+How to install offline - Computer without Internet access
+---------------------------------------------------------
+
+First, download the oletools archive on a computer with Internet access:
+* Latest stable version: from https://github.com/decalage2/oletools/releases
+* Development version: https://github.com/decalage2/oletools/archive/master.zip
 
-    chmod +x /opt/oletools/oletools/olevba.py
-    ln -s /opt/oletools/oletools/olevba.py /usr/local/bin/olevba
+Copy the archive file to the target computer.
 
-Then the olevba command can be used from any directory:
+On Linux, Mac OSX, Unix, run the following command using the filename of the
+archive that you downloaded:
 
-    user@remnux:~/MalwareZoo/VBA$ olevba dridex427.xls |less
+sudo -H pip install -U oletools.zip
 
+On Windows:
 
+pip install -U oletools.zip
 
-For python applications
------------------------
 
-If you plan to use python-oletools with other Python applications or your own
-scripts, the simplest solution is to run "pip install oletools" or
-"easy_install oletools" to download and install the package in one go.
-Pip is included with Python since version 2.7.9.
+Old school install using setup.py
+---------------------------------
+
+If you cannot use pip, it is still possible to run the setup.py script
+directly. However, this method will not create the command-line scripts
+automatically.
+
+First, download the oletools archive:
+* Latest stable version: from https://github.com/decalage2/oletools/releases
+* Development version: https://github.com/decalage2/oletools/archive/master.zip
+
+Then extract the archive, open a shell and go to the oletools directory.
+
+### Linux, Mac OSX, Unix
 
-IMPORTANT: to update oletools if it is already installed, you must run
-"pip install -U oletools", otherwise pip will not update it.
+sudo -H python setup.py install
 
-Alternatively if you prefer the old school way, you may download the
-latest archive from https://github.com/decalage2/oletools/releases, extract it
-into a temporary directory and run "python setup.py install".
+### Windows:
 
+python setup.py install