HTTP 500.0 - Internal Server Error in Windows 2008 R2 Server

After deploying a 32-Bit WCF service in IIS 7.5(Windows 2008 R2 server), browsing the service failed with
HTTP 500.0 - Internal Server Error, and from the error message i figured out something wrong with PageHandlerFactory. For 32-Bit web apps, it is mandatory to set 'Enable 32-Bit Applications' to 'True'. We can either set it @ 'Application Pool Defaults' or the specific Application Pool in question.

BadImageFormatException in Windows 2008 R2 Server

I successfully imported PowerShell Script written using C#, but it throws System.BadImageFormatException when i tried to execute it. After spending few hours, figured out my Powershell Script was compiled for x86, so i should have used “c:\Windows\SysWOW64\WindowsPowerShell\v1.0”.