
The disk defragmenter helped in optimizing the performance of the system. The disk cleanup tool was introduced, which helped in removing unnecessary files from the system. Multi-display support and power management was improved. Windows 98's taskbar was more customizable than the one in Windows 95. NetShow player was a media player which was to function either as a standalone program or function embedded in Internet Explorer or other webpages. It also introduced NetShow player, which was eventually replaced by Windows Media Player. Active Desktop was introduced, which provided users the ability to customize the desktop with the look and feel of the Internet. One very significant feature in Windows 98 was the Web-based interface. It also had the capability to convert the drive to FAT32 with no loss of data. There was improved hardware support for devices like USB and DVD, and there was built-in support for MMX processors and graphics cards. The system file checker had the ability to repair critical system files and also check the files for any corruption or modification. There was also greater emphasis on security, as additional protection was provided for important files along with auto-backing of the registry feature and enhanced networking.

It introduced Web-based applications like FrontPage, Windows Chat, Internet Explorer 4.01 and Outlook Express. Windows 98's boot sequence was based on MS-DOS, and the operating system introduced features to help in greater Web integration.
