Zemax Opticstudio License Fixed [exclusive] Guide
: Since the license is not shared, you never have to wait for a "seat" to become available on a network server.
| Feature | Fixed (Node-Locked) | Floating (Network) | Subscription (Named-User) | | --- | --- | --- | --- | | | One specific computer only | Any computer on the network, up to concurrent user limit | One specific named user (human), any computer they log into | | Internet required? | No (after activation) | Yes (to check out license from server) | Intermittent (for validation) | | Best for | Dedicated test/workstations, air-gapped systems, long-term projects | Teams sharing licenses across shifts or part-time users | Short-term projects, temp staff, or keeping cash flow flexible | | Cost over 5 years | Lowest (perpetual license + annual maintenance) | Medium (perpetual + maintenance + server admin) | Highest (recurring annual payments never end) | | Transferability | Difficult (requires support ticket) | Easy (just log off/on) | Easy (user changes computer) | zemax opticstudio license fixed
For softkeys, the license should appear automatically if it was previously activated. Common Troubleshooting Fixes How to troubleshoot softkey license issues (Zemax legacy) : Since the license is not shared, you