With a Windows Server 2008, I cannot start my Web site because I get:

"Could not load file or assembly 'Interop.ADODB' or one of its dependencies. An attempt was made to load a program with an incorrect format. "

This is working fine in Windows Server 2003. I know those libraries are old and we need to replace them. At this point, I am just trying to figure out if it is normal the Web site will not run if I have that library in the Bin directory.