Robert,

The sample web interface does not require CDONTS to work. The ASP pages will deliver emails simply by adding/modifying records in the SpamFilter database. It will be SpamFilter itself that will then deliver the email, avoinding the need for any server-side components to be installed on the IIS server.

The only requirement for IIS is that the ASP extensions be enabled, and that the IUSR anonymous account used by IIS (if the website is configured for anonymous browsing) has access to the necessary files and folders.

The screenshots attached show a generic IIS error with little extra troubleshooting information. If you select in Internet Explorer "Tools - Internet Options - Advanced", please uncheck the option "Show friendly HTTP error messages. If you try accessing the page again, a more detailed and explanatory error should appear.

From the error in the logs you attached (Operation_must_use_an_updateable_query) it appears that you are using Microsoft Access for a database, and that the IUSR anonymous account in IIS does not have rights to update the database. Please ensure that the IUSR_machine_name user has read/write access to the NTFS directory where the Access database is located (if indeed using Access), otherwise the web interface won't be able to update the database.