fix this bug in the next version?

there isn’t any bug in what you described.

could somebody help me out

our screenshots don’t seem very realistic, as they show the filename with an .exe extension showing up as text-based XML – that seems highly unlikely to me. But maybe it does have a section 129MB into the file where it has a bunch of uncompressed text – I’ve rarely seen such long sections of pure text in a compiled .exe.

If you were actually trying to run that executable by using File > Open, that’s not the way you run an executable, that’s the way you open a text file for reading/editing. You could launch it using Notepad++'s Run menu, but that’s not the most efficient way – double-clicking the executable from Windows Explorer or desktop, or clicking on the application in the start menu is the right way to run an application.

If you are trying to edit the program by using Notepad++ to edit the raw .exe file (which is a binary format), you need to understand that just editing random “text” in a true .exe is likely to crash the executable and have other dangerous side-effects that you would never be able to guess. Notepad++ is designed to edit text, not to decompile a piece of software so you can hack it. .exe executables are not text files.

To edit a compiled .exe-based application, you have to download its source code (assuming it’s publically available), and have the necessary development environment to build the executable from source. Since you mentioned “cubase pro”, I am assuming it is not open source, and you are not going to have access to the source code.

And, based on the phrase “and run to a full cubase pro license”, it sounds like you are asking us how to hack a commercial piece of software to get a free license to a paid piece of software: even if Notepad++ were a magical .exe-editor, rather than being being a text editor, what you are asking from us is illegal. Sorry, we’re not going to help you, if that’s really what you were asking for.