Filter Content By
Version

## AMPL Installation Wizard

Here are instructions to upgrade AMPL-Gurobi on Microsoft Windows:

1. Unzip the supplied AMPL-Gurobi file, which will be named something like amplgurobi9.1.1_mswin64.zip. This will create a folder called AMPL, which contains the AMPL-Gurobi software. (Note that your unzip utility may embed this AMPL folder inside a folder such as amplgurobi9.1.1_mswin64).
2. Copy your existing ampl.lic license key to the AMPL folder that was created in the previous step.
3. Replace your old AMPL folder with the new one.