Once you have activated a license, it is a permanent code specific to the assigned server. It cannot be used on any other server. If the activation code and server do not match, Double-Take will not run. You can deactivate a Double-Take license if you uninstall Double-Take using the Double-Take Console. The license that was in use will be deactivated, and that license can be used on a new server. If you do not deactivate your license, you will have to complete a host transfer which will allow you to activate the license for use on another server.You can only complete two host transfers, and then the license becomes invalid. You can complete an unlimited number of deactivations.
The key to the deactivation process is performing the uninstall through the Double-Take Console. If you perform the uninstall through the Windows add remove programs applet, the license will not be deactivated.
If you failed over a full server job but did not enable reverse protection when you configured the job, you will lose the activated target license. To workaround this situation, uninstall Double-Take on the failed over source (currently on the target hardware) using the Double-Take Console, and the uninstall process will deactivate both the source and target licenses. You can then reinstall Double-Take on the failed over source (currently on the target hardware) and reactivate the source's original license.
After your licenses have been deactivated, you can reuse them on another Double-Take server.
If your server is not connected to the Internet, you will have to export your license inventory to a file and then upload that file to https://activate.doubletake.com to complete the deactivation process. See Managing the Double-Take license inventory for details on export the license inventory.