CMS | Sitefinity Not Working on Windows 7 64-Bit

To solve this problem, you need to access IIS 7 Manager and make sure that the:

• Application Pool is switched from Default to Classic
• Logon User in Classic Application Pool is LocalSystem
• Enable for 32-bit applications

To enable 32 bit application for IIS. Right click on the Application Pool and select “Advanced Settings” then “Enable 32-bit Applications.”

Some other help can be found here and here.

To Open SiteFinity in Visual Studio 2008, go here.

Here is an installation guide and permissions