This article describes the DualView feature in Microsoft
DualView is an extension of the multiple-monitor feature in
Microsoft Windows 2000. Some high-end display adapters, and many portable
computers, support two interfaces to the same display adapter. In portable
computers, this functionality involves the internal display and the external
connector for a monitor or other display. DualView enables the two interfaces
to display different outputs at the same time.
Likely scenarios for
DualView include the following:
- A user has a portable computer in an office and needs to
view data from two programs at the same time. By connecting an external monitor
to the portable computer, the user can use both monitors simultaneously from
the same computer.
- An IT administrator discovers that there is limited
expansion space in a computer center. DualView allows the administrator to
connect two monitors to one system by using just one display adapter that has
two output connectors, as opposed to using multiple adapters.
To Enable DualView, follow these steps:
- Right-click on the desktop, and then click Properties.
- From the Display properties window, select the Settings tab.
- Select the Display Monitor, and then select the Extend my Windows desktop onto the
For additional information about display adapters supported
by the DualView feature, click the article number below to view the article in
the Microsoft Knowledge Base:
Supported Display Adapters for Multiple Monitors and Dualview