Are you sure? Did you install it in a VM or did you install it on your host machine? I'm guessing you installed it on the host machine, and that is why you did not see any meaningful info.
If you want to know another option, then you can use LordPE or CFFExplorer to look at the import/export tables of the exe. It might lead you to DocFrame.dll, it has some very interesting stuff in it.
Install IDA Free and dissemble the program. Use the strings (Views -> Open Subviews -> Strings) to narrow down your search area. HINT: type in "licence".
Use a hex editor (Hex Editor Neo) to patch the file. This
website will help you identify what hex code you need to use to convert jump types e.g. jz to jnz.
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