DisplayFusion

DisplayFusion screenshots

Manage multiple monitors with separate desktops, taskbars, and wallpapers
Advanced Settings
DisplayFusion 8.0 : Advanced Settings

Alternative downloads

Dual Monitor
It allows you to extend the taskbar when using a dual monitor.
1.22.021813
FREE
Actual Multiple Monitors
It improves Windows user interface when working with several monitors.
8.12.2
Active Virtual Desktop
Create up to nine virtual desktops.
2.01