21.   Or you may use this feature to send alert messages or e-mail to other users on the network to determine how to treat the infected files.

22.   Privacy groups are worried that this feature will be used as a tracking technology by law enforcement officials.

23.   Screen phones make it easier to use enhanced features by listing choices on the screen corresponding to single buttons.

24.   Schlumberger uses features of the Internet to disseminate information, such as its corporate phone directory, internally.

25.   So Yahoo, which would not disclose how many people use the feature, absorbs the fees charged by Checkfree.

26.   So, when you send an e-mail using that feature, you are essentially sending a Web page to the recipient.

27.   Some others use features of the Microsoft media player.

28.   The application to use this feature was submitted in August and no others of its kind are pending, according to Dean DeBuck, a spokesman for the OCC.

29.   The eagerness with which Fox used this feature made you think the online gnomes should have asked truly provocative questions.

30.   The first merchants to allow purchases using that feature will be part of an electronic shopping service to be introduced by MCI Communications Corp. later this month.