"An attempt was made to load a program with an incorrect format.” in IIS 7
Was working on an old website dev region that hadn't been used since we upgraded to IIS 7 and a 64-bit web server, and was getting this error: "An attempt was made to load a program with an incorrect format." After some research I found the answer here: http://stackoverflow.com/questions/41449/i-get-a-an-attempt-was-made-to-load-a-program-with-an-incorrect-format-error-o The solution that worked for me was to enable 32-bit applications in the AppPool.