Check here for PC*MILER hardware and software requirements.
The automated process is currently available for versions 26 and higher to new users of MVS and for those who are adding one or more versions to an existing MVS installation. All versions for which the user is licensed will be installed.
1. Download Multi-Version Switch using the link provided in the email you received when the product was purchased.
2. Run the setup.exe, which will create and install files to the following folder: