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How can I authorize the RWIND Simulation program offline with a software key on a single‑user computer via e‑mail?


The program RWIND Simulation is protected against unauthorized use. The program can be authorized offline (a computer is not connected to the Internet) with the activation by e‑mail. Proceed as follows:

  1. Run RWIND Simulation "As Administrator." To do this, right-click the RWIND Simulation icon and select "Run As Administrator."

    Figure 01 - Program Start

  2. Confirm the authorization check with the "Activate Now" function.

    Figure 02 - Authorization Check

    This opens the "RWIND Simulation 1.xx Demo Authorization Status" dialog box.

  3. In the "RWIND Simulation 1.xx Demo Authorization Status" dialog box, select the "Software Key" option in the Authorization Method area and click the "Activation via E-Mail" function in the lower part.

    Figure 03 - E-mail Activation

    This opens the "Activation by E-Mail" dialog box.

  4. In the "Activation by E‑Mail" dialog box, enter your license information (a license number and/or name and address of the institution that purchased the program license) based on your contract documents.

    Furthermore, enter a user-defined description of the workstation to be activated under "Description of Workspace" and the RWIND Simulation level with an expiry date of the activation to be carried out under "Required Authorization."

    Then, click the "Generate Request Code" function to confirm your entries.

    Figure 04 - Generating Request Codes

    This opens the "RWIND Simulation 1.xx Demo" dialog box.

  5. Check the data entered in the "RWIND Simulation 1.xx Demo" dialog box. If they comply, click "OK" to confirm the dialog box.

    Figure 05 - Checking Entries

    This opens the "Activation by E-Mail" dialog box.

  6. The "Activation by E-Mail" dialog box consists of three parts. In the "Step 2" tab, the required request code is displayed on the left. Copy this text block to the Windows clipboard with the "Copy Request Code" function and then paste the code into a blank e‑mail with [Ctrl]+[V] or the Windows paste function. Send this e‑mail to for further processing.

    Figure 06 - Sending Request Code

  7. You will receive an activation code from us. In the dialog box, go to the "Step 3" tab and enter this code in the "Activation Code" text box.

    Then, click the "Activate Now" function to run the activation process.

    Figure 07 - Program Activation

    After the successful authorization, you will receive a confirmation message and it is possible to use the program without any restrictions.
This offline e‑mail activation uses your purchased license for the defined activation period in our system. During this time, it is not possible to activate the RWIND Simulation program with the license on any other computer. The assignment of the license in our system ends with a proper deactivation or after the defined activation period has expired.

Then, the activation process can be carried out again on the same or a different computer. Please note that the e‑mail request codes can only be used once for the activation. To reactivate, a new request code must always be sent to us.

To avoid unnecessary license assignments in our system due to unexpected computer problems on your part (defect, loss, hardware replacement, employee change, and so on), we recommend you to keep the activation period as short as possible.


Software key Offline activation Softlock RWIND License Authorization Activation


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Compatible Programs RWIND Simulation
RWIND Simulation 1.xx

Stand-Alone Program

Stand-alone program for numerical simulations of wind flow around buildings or any other objects. The generated wind loads acting on these objects can be imported into RFEM / RSTAB programs for static and dynamic analysis.

Price of First License
2,690.00 USD