so is the problem steam or COD ????

It's a combination between how COD is programmed and how Windows 8 handles C++ 2010, not Steam.

I recently installed windows 8 to test it. Even though i was really pessimistic about metro i might not go back to windows 7. Windows 8 feels really fast also start8 gives nice old start menu. Not being able to run COD can be quite the disadvantage but i got bored of "testing" it even then i had windows 7 on my machine :grin:

Windows 8 user here as well, and I got the same error.
How about updating the Steam page to warn about this issue? I know it doesn't list Win 8 specifically, but this is the only game I've tried that does not work with Win 8. I've tried about 60 games, so I think It can be pretty safe to say this is an error specifically with COD and not Win 8. So a warning on the store page would be nice. Right now, with no official word from the devs, I feel like I've pretty much flushed 20€ down the drain.
Cheers

I think it is pretty contraproductive to not take 8 on a AS IS base. I would not mess around with 3rd party soft, to get back the old style menu.

But this is everybodies own decision.

The big no go to "8" is that CloD is not running.

I got the same screen when I was installing DCS Worlds, but DCS Worlds with P51 works on win8 64bit.

Could be this file?

"InstallScript"
{
"Run Process"
{
"DirectX"
{
"process 1" "%INSTALLDIR%\\redist\\DirectX\\DXSETUP.exe"
"NoCleanUp" "1"
"command 1" "/silent"
}
"VCRedist"
{
"process 1" "%INSTALLDIR%\\redist\\VCRedist\\vcredist_x86. exe"
"NoCleanUp" "1"
"command 1" "/Q"
}
"GDFInstall"
{
"process 1" "%INSTALLDIR%\\redist\\GDF\\GDFInstall.exe"
"command 1" "/silent /installpath \"%INSTALLDIR%\" launchergdf.dll"
}
"DotNetFx40_Client"
{
"process 1" "%INSTALLDIR%\\redist\\DotNetFx40_Client\\DotNetFx 40_Client_x86_x64.exe"
"NoCleanUp" "1"
"command 1" "/passive /showfinalerror /promptrestart"
"IgnoreExitCode" "1"
}
}
"Run Process On Uninstall"
{
"GDFUnintall"
{
"process 1" "%INSTALLDIR%\\redist\\GDF\\GDFInstall.exe"
"command 1" "/silent /u /installpath \"%INSTALLDIR%\" launchergdf.dll"
}
}
}
"kvsignatures"
{
"InstallScript" "97740562954e36bc348aa61246de2c0aea013345248f3da2b 649fd1d9d445f27abe0e2b5a50d3b17033ca9f152823343875 56694fa2ac05c57aacb18fc02cbd51b11e160e331a8b9b3c7d b870ed29cdee2438c2e7937f45ff272198408128d4a3176d73 b5eead7ac78bb2e3138736a67ac8d04b812edda319bf5f3d5c 0a0c37f"
}

S!

Still on the verge upgrading to Windows 8 as IL-2 is not an issue, not playing it that much anyway. But how else have you felt it is in daily use? In gaming there is small if any difference. Pros and cons are welcome :)

I have been using it for a few days & so far I like it better than win7. If it was not for the Start8 program I would of never installed it. So far everything is running fine except COD. :/

I can't believe there is not a sticky saying do not install Windows 8 if you want to keep playing IL2 COD. Has one of the developers even commented on this issue in the forums?

The .NET Framework 4.5 is a highly compatible, in-place update to the .NET Framework 4. By using the .NET Framework 4.5 together with the C#, Visual Basic, or F# programming language, you can write Windows apps. The .NET Framework 4.5 includes significant language and framework enhancements for C#, Visual Basic, and F# (so that you can more easily write asynchronous code), the blending of control flow in synchronous code, a responsive UI, and web app scalability . The .NET Framework 4.5 adds substantial improvements to other functional areas such as ASP.NET, Managed Extensibility Framework, Windows Communication Foundation, Windows Workflow Foundation, and Windows Identity Foundation. The .NET Framework 4.5 delivers better performance, reliability, and security. :confused:

I found this on redirecting assembly versions

http://msdn.microsoft.com/en-us/library/7wd6ex19.aspx

on the contrary - the last big no go for CLOD, no Win 8 support. I am tired of testing this software.