ZEMAX v2022.2023.2024.2025.2026 installation wizard

1. Install ANSYS License Manager
2. Copy <ANSYS Inc> program folder to :\Program Files\ANSYS Inc ) 

3. Run Programs > ANSYS, Inc. License Manager > ANSYS License Manager > ANSYS License Management Center

4. Click "Get System Hostid Information"

5. Open file "license.txt" in notepad and replace XXXXXXXXXX in string:

   SERVER localhost XXXXXXXXXXXX 1055

   with computer real HOSTID(HOSTID=MAC Address)

Such as:SERVER localhost 04d4c4537290 1055

6. Save "license.txt"

7. Click "Add a License File" > "Choose File" > browse to file "license.txt" > click "INSTALL LICENSE FILE"

8. Close Ansys License Management Center

9. Install ZEMAX

10. Create environment variable ANSYSLMD_LICENSE_FILE=1055@localhost

11. Run "Enabler.reg" and confirm to add info into Windows Registry

12. Overwrite original <v251> program folder to C:\Program Files\Ansys Inc\v251) 

13. Reboot

14. Run Start > Ansys 2025 R1 > Ansys Licensing Settings 2025 R1 

    For FlexNet Publisher > License servers turn on "Enabled" knob and input

    for Port: 1055

    for Server 1: localhost

     Click "Test" and "Save"

     For Preferences > License service priority make sure that "FlexNet Publisher" is in the top of the list. If not- move it in the top

     For Preferences > HPC priority make sure that "Ansys HPC Pack" is in the top of the list. If not- move it in the top

     Click "Save" 

15. Close Ansys License Client Settings 2025 R1

Run ZEMAX 

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If you need any assistance, feel free to email me