This is the first free release. There has been some structural changes reflecting the intended open source development model, and installation is now even more straight-forward:

1. Download the file HighEnergyPhysics-4.1.0.3b.tar.gz or HighEnergyPhysics-4.1.0.3b.zip (if you're using using Windows you'll probably want the zip file).
2. Place the file in the directory mathhome/AddOns/Applications, where mathhome is the directory containing your Mathematica installation. If you're on a Unix system, mathhome can also be ~/.Mathematica/x, where x is the version of your Mathematica installation (if ~/.Mathematica/x/AddOns/Applications does not exist, you can safely create it).
3. Make sure there is not already a directory 'HighEnergyPhysics' (and move it out of the way if there is).
4. Unpack the file: Under UNIX, type tar -xvzf HighEnergyPhysics-4.1.0.3b.tar.gz; under MacOS and Windows, use some utility like StuffIt Expander or WinZip.
5. Start Mathematica, type <<HighEnergyPhysics`fc` and try out one of the examples.

1. Start Mathematica as root (terminal interface or notebook interface) and evaluate:
   SetDirectory[ToFileName[{$TopDirectory, "AddOns", "Applications"}]]
2. From within Mathematica (if you copied fcinst.m into the directory from where Mathematica was started; otherwise: <<"/mypath/fcinst.m") type << fcinst.m.
   This starts the installation procedure (files are written only into a directory called HighEnergyPhysics).
3. When the password dialog comes up enter your password(s) (you can also put the password(s) later in the file HighEnergyPhysics/FeynCalc/fc.m). If you're installing an update (newer version of fcinst.m) of FeynCalc and you have already a pasword, the password dialog will not show up. Added July 25, 2000: If you don't have a password, you can use '1374213742' which should always work.
4. FeynCalc can be started from within Mathematica (terminal or Notebook interface) by
   << HighEnergyPhysics`fc` .
   An alternative way is to put the above line into your init.m file. When starting Mathematica (the terminal version, not the notebook interface) from the directory where this init.m file is, FeynCalc will be automatically loaded. You can also use a button: FCStartButton.nb
5. TARCER: In case you want to automatically load a tarcer.mx file when starting FeynCalc, just copy it into the HighEnergyPhysics directory.