• FAQ on opening multiple Opticstudio instances
• How can I protect my software license?
• Can I share my software license with a colleague?
• OpticStudio Legacy Version System Requirements
• Setting OpticStudio to use an advanced graphics card
• How to identify your legacy Zemax license
• Can I change the {DATA} folder?
• Is my key under current support? (Zemax legacy)
• Can I write data to a Zemax hardware key?
• How to run OpticStudio or other Zemax applications on an Apple Mac computer
• What computer should I buy to run OpticStudio?