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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

No extension(s) specified for file type '<filetype>' 

The Extensions property for the specified file type is blank. If the Action or MIME type is specified for a file type, you must also specify at least one file extension.

To correct this error

  1. Double-click the error in the Task List to go to the specified file type in the File Types Editor.

  2. In the Properties window, select the Extensions property, and enter a properly formatted value.

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