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How can I extend an active license of RWIND Simulation based on a software key online before the activation period expires?


The RWIND Simulation program is protected against unauthorized use. If the software key is authorized, the program is only authorized for a specific activation period, which must be defined by the user. After this period, the program automatically switches to the demo mode; the previously used license is freely availablea gain for a new activation. To avoid the reactivation on the same single‑user computer, it is possible to renew the license online (a computer is connected to the Internet) by specifying a new activation period before the activation period expires. 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. Select the "RWIND Simulation - License and Authorization" function in the "Help" menu.

    Figure 02 - License and Authorization Settings

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

  3. Check in the "RWIND Simulation 1.xx Authorization Status" dialog box if an active software key authorization is available. This is the case if the "Software Key" option is selected in the "Authorization Method" section, and an active authorization is indicated by a green dot in the "Authorization Status" section.

    Figure 03 - Authorization Status

    If the check is negative, and a red dot is displayed, no RWIND Simulation license based on a software key is activated on the single-user computer. As a result, the activation period for a license cannot be extended.

    If the requirements mentioned above are met, click the "Extend Activation Online" button. The "Extend Activation Online" dialog box appears.

  4. The "Extend Activation Online" dialog box shows the license specification to be extended.

    Enter your online activation key based on your contract documents and define the new activation period in the date field.

    Then, click the "Extend Activation Now" function to run the online extension.

    Figure 04 - Extension of Activation

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

  5. In the "RWIND Simulation 1.xx" dialog with the confirmation prompt about the planned modification, click "OK" to finally change the activation period.

    Figure 05 - Confirmation Prompt

    After successfully changing the activation period, you receive a confirmation message and can use the program without restrictions.
Thus, your purchased license is used in our system for the newly defined activation period. During this time, it is not possible to activate the RWIND Simulation program with the activation key 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.

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 Online activation Softlock License Authorization Activation Extension


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  • Updated 10 November 2020

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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