Standard Installation Procedure (MATLAB Installation Guide for PC) MATLAB Installation Guide for PC     Installing Additional Products   When you order additional products, The MathWorks sends you a new Personal License Password (PLP). Your PLP identifies all the products you are licensed to install. To install additional products: Shut down MATLAB. Insert the Release 12 CD into your CD-ROM drive, or double-click on the file you downloaded from The MathWorks Web site. The MathWorks Product Installer program starts automatically. Follow the instructions on the installer dialog boxes, detailed in Standard Installation Procedure In the Product List dialog box: Specify your current MATLAB installation directory as the installation directory. Deselect all but the product (or products) you want to add. By default, the installer lists all the products you are licensed to install, preselected for installation, not just the new products. When the installation program is finished, perform any configuration required by the product you purchased.  Removing a MATLAB Installation Concurrent License Installation Procedure