Steam has a couple of scripts that are executed after the installation of a Game or Program. They say what else needs to be installed or what registry keys need to be created. Some examples:
- Just Dance 2017 installs Uplay, declared in "steamapps\common\Just Dance 2017\Support\Installerscript.vdf"
- GTA IV creates "HKEY_LOCAL_MACHINE\SOFTWARE\Rockstar Games\Grand Theft Auto IV", declared in "steamapps\common\Grand Theft Auto IV\GTAIV\installscript.vdf"
Is there a way to force Steam to run the post installation scripts again?