Scripting

Here is how I am able to do. After I install/ launch the application, it asked me to enter the license. I entered it. I opened program files and am looking for which file it is making a change to as I install the key. It created a app.lic key. So finally I copied it to the same location of the source file. Then in mst I copied it to the program files\path where it was saving. So I ran it with normal msiexec /i msi transforms=mst /qb!

done, it never asks for license and launching the app.

If the serial is NOT asked DURING installation , then you need to find out where the serial is being placed ( and hopefully not encrypted) . You can try be repackaging the moment after installation and entering the serial?

If the serial is placed in the registry, ini, or other conf. file , you will notice in your capture.
please be aware that you might encounter a more complex way of securing serials.. in that case I would contact the vendor and ask if they have an "enterprise" license or installer for distributing to many machines... ( most "smart" vendors have something like that...)