Today I setup a new site in IIS 7, added the default document for index.cfm, then ran the ColdFusion connector. That was the wrong thing todo as now I have a “Cannot add duplicate collection entry of type ‘add’ with unique key attribute ‘value’ set to ‘index.cfm'”.

To resolve the issue I removed the line from the web.config file.

<add value="index.cfm" />