Moved Solution from 32 bit Machine to 64 Bit

Hi,

I've just moved a solution from an old 32 bit operating system to a new 64 bit one.

The original solution was working fine, now when i launch it in iis on the new system i get the iis error :

"The requested content appears to be script and will not be served by the static file handler."

The target framework for the solution on the original machine was 3.5 although on the new one it has changed it automatically to 4.0.

Also, i must add that the solution works when using the visual studio web browser.

Any help would be much appreciated!!