Lahey Fortran

Product License Activation

The product trial is installed with licenses set up to expire after an evaluation period. When the evaluation period expires, some product features will be disabled. To enable all of the features of the product, a license must be purchased and activated. The Lahey License Manager app is used for activating and managing the product license.

When license activation takes place, it will only be valid on the PC on which it was activated. There are several scenarios that will cause the license to revert to a trial version:

Two activations per license are allowed. If you uninstall and reinstall this product on the same PC configuration, it will still be activated. Contact support@lahey.com if activation fails or if you need to reactivate your purchased license on a different PC.

License Activation Using Lahey License Manager With Internet Connection (recommended)

  1. Select the Lahey License Manager shortcut from Windows Start or from the Help menu in Visual Studio.

    Press Activate License.

  2. The License Status will be displayed.

    Select "Using This computer's Internet connection".

    Enter the License ID and Password provided when purchasing the product, then press Next.

  3. After successful activation, the activated license dialog is displayed.


License Activation Using Lahey License Manager Without An Internet Connection (using another online PC, or by email)

This method of activation involves generating a request file, downloading a response file by opening the request file in a browser, then using the response file for activation. An Internet connection is needed to download the response file, so the request file needs to be copied to an online PC where the response file is generated and copied back to the first PC for activation.

  1. Select the Lahey License Manager shortcut from Windows Start or from the Help menu in Visual Studio.

    Press Activate License.

  2. The License Status will be displayed.

    Select "Using Another computer's Internet connection".

    Enter the License ID and Password provided when purchasing the product, then press Next.

  3. The Begin Manual Request dialog is displayed.

    Take note of the location and name of the request file. Press Next.

  4. The Complete Manual Request dialog will be displayed. Press Resume Later.

  5. Get the response file in one of the following ways:

    1. Using another PC that is connected to the Internet:

      1. By default, the request file will have been saved onto your Desktop with the name "Request.html".

      2. Take the request file created in the previous step to the other PC (e.g., by flash drive or email) and double-click on it in Windows Explorer.

      3. The default browser will open a page for initiating the download of a file called "Response.xml".

        Click Download.

      4. If prompted, allow the download, taking note of the location. The downloaded file is the response file.

      5. Take the response file back the PC to continue with the last step of activation.

    2. Using email:

      1. Send an email to Lahey Support at support@lahey.com with the request file attached and with the subject "LGF Activation Request".  (By default, the request file will have been saved onto your Desktop with the name "Request.html".)

      2. You will receive an email reply from Lahey Support with a response file attachment named "Response.xml". Save the response file to your hard drive to continue with the last step of activation.

  6. Select the Lahey License Manager shortcut from Windows Start or from the Help menu in Visual Studio. Select Activate License. ct Activate License.

    Select "Open a response file". Press Browse to select the response file you saved in the last step. Press Next.

  7. Upon successful activation, the activated license dialog is displayed. dialog is displayed.

After Activation

Press Register to enter registration information and submit it online.

If a product maintenance update is available, press the "Download and install update" link. See Installing Maintenance Updates