If you cannot find the admin tool shortcut, it should be located in the desktop folder on the administrator account used to download TSplus. You can also find the TSplus folder on this path: 'C:\Program Files (x86)\TSplus\UserDesktop\files'.
Double-click on it, then click on the license tile.
You can now see the Serial Number :
Activating your license
When you order a license, connect to our Licensing Portal and enter your Order Number, your e-mail address and your Serial Number:
You will get your license.lic file, then, on the Admin Tool, click on the "Activate your license" tile:
Locate your license.lic file, then open it, your license is activated!