Windows 98, like Windows 95 before it, improves the way you and your applications configure and use modems. Many of the data communications features in Windows 98 require 32-bit communication programs, but even your existing 16-bit programs can take advantage of some of the improvements in Windows 98.
Installing and Configuring Modems and COM Ports
Your modem and communications (COM) port work hand-in-hand. Therefore, you must set both properly for your modem to work at its best. Your COM ports probably were configured properly when you installed Windows 98. But you might want to modify some of the COM port settings, such as changing IRQ or other values. The following section explains how to use the Device Manager to configure the COM ports.