How to easily edit the installer exe?

Question

Installer

You need to edit the LDD program installer that requires you to install the flash player, but the problem is that it is already installed initially in windows 10. As a result, the player installer gives an error, which leads to an error in the main installation of the program. There is no particular point in bothering with the program, so we need an easy way to cut out the requirement to install this player. The installer itself opens through winrar. Just cutting out the player's installer did not help, replacing it does not work, it still gives an error. The main problem is that the support of the program is over and it makes no sense to write to the developers.