Download Free Student/Trial Version of MPL


Maximal Software is currently making available for download the student/trial versions of both MPL and OptiMax, with CPLEX, GUROBI, CoinMP, SULUM, LINDO, CONOPT, KNITRO, IPOPT, and LGO solvers free of charge. The student/trial versions are limited size (300 constraints/variables) and work for a specific period, but otherwise fully functional versions of the software. This allows users to install the software on their own personal computer and evaluate it for use in optimization modeling projects.

Installation Instructions:

Step 1. Request Activation Code

    Contact Maximal Software to receive the activation code for the software. You can either fill out the:

      Request for Activation Code Form (preferable)

    or send email to:

    giving your name, and address along with other relevant information.

Step 2. Download the Software

    Select which file for MPL you want and then click on the name of the file to download it. If you are asked whether you want to save the file, choose to save it to your hard-disk. Please note the location, where you are saving it, since you are going to need it in Step 3.

    MPL for Windows 5.0 (Windows): Mplwin50Student.msi (32-bit)

    Mplwin50Student_64.msi (64-bit)

Step 3. Install the MPL Software

    Before installing this new version of MPL, please uninstall first any previous versions of you have already installed. You can start the installation by double-clicking on the file from where you saved it in Step 2. Please note that if you have 32-bit Windows, you should choose Mplwin50Student.msi. If you have 64-bit Windows, you can choose either the 32-bit or 64-bit version of MPL. The 32-bit MPL provides more options when linking to data sources and solvers, while the 64-bit version allows MPL to use more than 4Gb of memory.

Step 4. Activating the MPL student license

    Before you can use MPL, you need to receive and install the MPL student license activation code that you requested in Step 1. The instructions on how to install the license, which is issued exclusively for MPL, are included in the email that we will send back to you. If you do not receive an email within 1-2 business days (most are sent within 24 hours), please check with us to see if we did receive the activation code request.


If you have any problems with either downloading or installing MPL, please check the Technical Support (FAQ) page that contains answers to the most common questions that we have received or contact us directly at:

Maximal Software, Inc.
2111 Wilson Boulevard, Suite 700
Arlington, VA 22201

Tel: (703) 522-7900
Fax: (703) 522-7902