How to add additional information to exe file?

Question

PHP

there is a build of the program in it there is a place to write additional information (up to 200 characters)
how can you use the server or php (generally via the web) when giving the file to the user (during the jump) write additional information to the exe file and give it to the user ??
Modify the data inside the file and DO NOT re-sign it while maintaining the correct digital signature.

Answer 1

Modify the data inside the file and DO NOT re-sign it while maintaining the correct digital signature.

no way

Answer 2

You open the file, position yourself where you need it, write it, close it. Then do whatever you want with it. Always your CO.