Structural Engineering Library "seats" are single-user activations. Each seat can only be activated on one computer at a time.
This section will assist you in moving your activation from one computer to another.
When you originally activated the software, if you used the [Internet Activate] capability of the software, then you can use [Internet Deactivate] to return this activation to our server, so that it can be available to another computer.
Follow these steps:
Start the Structural Engineering Library. You will probably see the Project Assistant screen as shown below:

Click the [Close] button. Click License > Software Activation from the main menu as shown below:

You will now see the User Info & Licensing Information dialog as shown below:
.
Click the [Internet Deactivate] button to return your activation to our server.
Note! You must allow the ENERCALC file “EC6.EXE” Internet access through your firewall or anti-virus software.
After a moment, the system will indicate that the installation has been successfully deactivated by offering an [Internet Activate] button in the User Info & Licensing Information dialog as shown below:

Your activation has now been returned to our server, and you can go to another computer where the Structural
Engineering Library is installed, and activate it by clicking License >Software Activation > [Internet Activate] from the main menu.
For the most current installation information, please review this document located on our website: