If it doesn't work, or if you had already selected Scripts Only, return to the Home Directory tab of the Properties dialog box and click the Configuration button. On the App Mappings tab, you'll see a list of file extensions and the application that IIS uses to process these files. If .ASP doesn't appear in the list, add it. The executable is ASP.DLL, which is by default stored at C:winntsystem32inetsrvasp.dll. The standard configuration limits the verbs to GET, HEAD, POST and TRACE. Be sure the Script Engine checkbox is selected.
Once you configure a new script mapping for .ASP files, they should
process successfully again.
This was first published in October 2001