Manged to figure this out for post build.
- Open the exe in visual studio
- edit resource to add/odify details
- Save and close, the changes are implemented in the exe
Ref: https://social.msdn.microsoft.com/Forums/en-US/8907831d-dfca-4dd7-8ce7-e982ef021078/how-to-change-the-file-description-for-an-exe-file?forum=windowsgeneraldevelopmentissues