Why is install script running on launch?

[mirpa]

Why is the game trying to install MS redistributable files on every launch?

[cheshirm]

perhaps something did not finish in the installation process.

click on steam settings then downloads then clear download cache then clear cache.
steam verify game files again and hopefully the installation process will complete.

another possibilty is the installer does not have permission to install MS redistributables.
run steam with admin permission then try steam verify game files.

or go to the steam witcher 2 game folder then the redists folder. install dxsetup.exe and vcredist_x86.exe with admin permission

[svillaf91gg]

It´s an issue that can be fixed by applying the following in the registry:

;For 64 bit systems (x64)
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Valve\Steam\Apps\20920]
"DirectX"=dword:00000001
"VCRedist"=dword:00000001
"dotNetFx40"=dword:00000001

;For 32 bit systems (x86)
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Valve\Steam\Apps\20920]
"DirectX"=dword:00000001
"VCRedist"=dword:00000001
"dotNetFx40"=dword:00000001

Just to explain what the above does:

It just tells Windows and Steam that for Witcher 2, all those redistributables have been installed successfully, so that it doesn't keep reinstalling/retrying every time you play.

[teleguy]

You could also open 20920_install.vdf inside the game directory with notepad, delete

		"VCRedist"
		{
			"process 1"		"%INSTALLDIR%\\redist\\vcredist_x86.exe"
			"command 1"		"/q"
			"IgnoreExitCode"		"1"
		}

and then use "save as..." (with "All files (*.*) selected, not "Text Files (*.txt))

[Pingu's Had Enough]

Originally posted by teleguy:

You could also open 20920_install.vdf inside the game directory with notepad, delete

		"VCRedist"
		{
			"process 1"		"%INSTALLDIR%\\redist\\vcredist_x86.exe"
			"command 1"		"/q"
			"IgnoreExitCode"		"1"
		}

and then use "save as..." (with "All files (*.*) selected, not "Text Files (*.txt))

But when I do that, Steam redownloads the deleted data on every launch, essentialy rendering this fix unusable. Can I prevent Steam from doing that? I don't think I can.

[teleguy]

It doesn't for me.
Maybe try setting 20920_install.vdf to readonly.