This was especially painful in providing support for DOS applications.

Being a 16-bit DOS application, it won't directly run on 64-bit Windows versions.

Versions prior to 2.80 were DOS applications, and could be run in only a limited number of environments.

It has an estimated 100 million users worldwide and there's still a huge demand for DOS applications.

It's time to put DOS applications under the microscope.

The mouse was supported, however, like any other DOS application, it required an appropriate device driver.

This can be used to gain the ability to use a sound card that typically is not well supported by the majority of DOS applications.

Simple DOS applications, which did not directly access the screen or other hardware, could be run.

DOS applications, he points out, run faster than their Windows counterparts, and are less expensive to write.

Or the user may choose to run several DOS applications at the same time.