[Setup]: MergeDuplicateFiles

Valid values:
Default value:
yes
Description:

Normally two file entries referring to the same source file will be compressed and stored only once. If you have a bunch of identical files in your installation, make them point to the same source file in the script, and the size of your installation can drop significantly. If you wish to disable this feature for some reason, set this directive to no.

The compiler normalizes the pathnames of the source files before comparing them. For example, Readme.txt and .\Readme.txt refer to the same source file.