When working in Windows 98 switching between windows is easy. Just follow the instructions provided in this free lesson.
As you know, Windows 98 allows you to have more than one application open at the same time. It also allows you to easily move between open applications. The application you select becomes the active window. When a window is active on the desktop, its title bar is blue. When a window is inactive, the title bar is gray.
In the example below, the Calculator window is active.