Working with .NET 2 and .NET 4 in same server on IIS 6

Don’t forget to create New application pool :

 

So any other Web App .NET versions can run at same server J

Running IIS on 32 bit mode

 

Error : The error indicates that IIS is in 64 bit mode, while this application is a 32 bit application and thus not compatible.

Here is the command prompt version

appcmd apppool set /apppool.name Site /enable32BitAppOnWin64:true

here is the script version

cscript %SystemDrive%\inetpub\AdminScripts\adsutil.vbs set w3svc/AppPools/Enable32bitAppOnWin64 1
aspnet_regiis.exe –i

 

 

Restart IIS,

 

And Set Web service Extension