2.Click the Advanced button in the lower-left corner.

3.In the Description of type field, delete the existing text and type a description of the file.

4.In the File extension field, delete the existing text and type the file extension.

5.Click OK.

The next time Netscape 7 sees the associated MIME type, it will assign the extension you typed in the File Extension field.

For example, in the following figure, the zip extension was assigned to a MIME type of application/unknown. The next time Netscape sees that MIME type, it will automatically assign the zip extension to the file.

6.Click OK.

124 Discovering Applications, Backup Servers and Hosts