Go to https://mysoftware.passageways.com and create a community account. We recommend you use an email address that won't change in the future.
Login to your new community account and click Run Expressway. Clicking this downloads the Expressway installer.
Run the installer as an administrator.
If .NET needs to be updated, it will require a reboot. FYI .NET can take between 5 and 15 minutes to install.