It's working now - thanks.
I have two solutions for this and maybe it also will be useful for you to handle it somehow. I'm attaching the screenshot with the first solution. The point is that after transferring the parser, Windows blocks it and therefore the file is closed
for usage. So once it's unblocked everything works fine even with newer versions of .Net framework (I tried 4.6.1 parser version with the current version of LogViewPlus).
Another solution - to use WinRAR archiver for packing the parser BUT (Important!) with an option "Save file streams" (screenshot is attached). Then once it's unpacked it works also fine.