Write data to EXE file

[Steffan-68]

You can for instance use some space directly after the normal end of the exe, so to put same informations.
The exe himself can read theese informations, or modifiy them, if the exe program knows its own path.
Curious question... it seems to be a viral approach of programming...

Yes, that's exactly what my program example does. 
Just stop by detours.
And why not like this, for information that the program needs once, write it directly into the EXE instead of in a separate file.
In the example above, whether it is registered or not, and bound to an HDD.
There are no limits to the imagination.
Just an alternative to a separate file.