1. Quit Mathematica if it is running. Click the name of the file that you want to install.

2. The “Téléchargement” window will appear. Click Enregistrer to continue.

3. The “Enregistrer sous” window will appear. Choose a download location, and click Enregistrer to continue.

4. When the download is complete, double-click on the file icon to uncompress the file and launch the installer.

5. The “Programme d'installation” window will appear. Click Suivant to continue.

6. If you have sufficient permissions on your computer, the “Options d'installation” window will appear. Use the default setting to install for all users or choose to install for yourself only. Click Suivant to continue.

7. The “Choisissez l'emplacement de destination” window will appear. The default installation directory is shown to the left of the Naviguer button.
Note: The installation directory must be the Mathematica top directory. The installer assumes that Mathematica has been installed to the default location Program File\Wolfram Research\Mathematica\5.0. If you installed Mathematica to a different location, click Naviguer and navigate to your Mathematica installation, and then click OK. 
 If you are uncertain of the Mathematica installation location, launch Mathematica and evaluate $InstallationDirectory. The output will be the Mathematica top directory.  Quit Mathematica. Click Naviguer and point the installer to the correct location.
Click Suivant to continue.

8. The “Commencer à copier les fichiers” window will appear. Click Précédent to review or modify the installation settings. Click Suivant to continue.

9. The “Installation terminée” window will appear when the installation is complete. Click Terminer to quit the installer.

10. If you are working on a French operating system, the language kit will be loaded automatically the next time you start Mathematica. If you have an English operating system, start Mathematica and choose Edit ⊳ Language ⊳ French from the menu. A dialog box asking you to quit and restart the Mathematica front end will appear.  The French Language Kit will be loaded automatically when Mathematica is restarted.