DeskPins allows you to keep any window on top of others with a few clicks. While many programs offer this as a feature, others do not, and in such cases DeskPins comes handy. In addition, you can also define rules that use the window title (with wildcard support) and can automatically keep any window on top that matches your rules. The ‘on top’ window is marked with a colored pin that can be quickly removed by simply clicking on it, returning the window to its normal state.
After the installation of DeskPins you can open it from its Start menu entry. It opens as a System Tray application. You bring the desired window in view and then left click on its System Tray icon; this converts the form of your mouse pointer from an arrow to a pin.
DeskPins is a small freeware program sized at merely 100KB. The software is compatible with Windows versions 98 / 2000 / XP / 2003 / Vista / 7.
Download: DeskPins
AutoHotkey Solution
If you use AutoHotkey, you can use this code to pin any application on top:
^SPACE:: Winset, Alwaysontop, , A
How to Use?
Focus on the program you like to keep on top and press