After inputting the correct Serial Number, you will enter the License management page.
There is an Activate link on the right side. Click it to enter the activation page. Click the browse button and select the Activate Request XML File (Application File) which you have generated before. After this, click the submit button and the page will display the activation results.
When the license activated, you can click the Download link on the right side below the Response XML. The file name of Response XML File (Activation File) consists of Serial Number and “-resp-act.xml” extension, e.g. ****-resp-act.xml
After you save the Response XML File (Activation File), reopen the Activation window of product and click Browse to select the Response XML File (Activation File).
Click Activate to apply Response XML File (Activation File) and activate GstarCAD.
Restart GstarCAD. Now GstarCAD has been activated. There would be no time limit after the activation.