Concurrent License Installation Procedure (MATLAB Installation Guide for PC) MATLAB Installation Guide for PC     Concurrent Licensing When you purchase a concurrent license, The MathWorks sends you two types of licensing information in an e-mail or fax: Personal License Password (PLP) License File Your PLP identifies the products you are licensed to install. Your License File identifies the products you are licensed to run. Personal License Password A PLP is a series of five-digit numbers preceded by a two-digit product release code. 12-12345-12345-12345-12345... If you did not receive your PLP, you can obtain one during the installation procedure by clicking the Get my PLP button on the Personal License Password dialog box. For information about other options, see Obtaining Your Concurrent License Information.  Setting Up a Concurrent Installation License File