DirectX 6.1 was also included with DirectSound improvements. Internet Explorer 4.0 was also upgraded to 5.0 and Internet Connection Sharing made its debut. Windows 98 Second Edition is an update to the original Windows 98 that includes improved modem and sound/audio card support through the Windows Driver Model, improved USB support, Wake on LAN support, FireWire DV camcorder support, and SBP-2 Mass Storage device support.
