Debugging Classic ASP on IIS7.5

By default IIS7 does not send detailed errors to the browser, instead sending a rather generic statement:

An error occurred on the server when processing the URL. Please contact the system administrator.

To enable detailed errors open the IIS Manager and navigate to the relevant website and double click on the ASP icon in the Features View tab.

Under the Compilation heading expand Debugging Properties and change Send Errors to Browser to True