Many of us run programs at some times that were designed for previous versions of windows like Windows 95 or windows 98 and 2000.These programs might have been designed to run under lower monitor resolutions and other display settings.
Compatibility mode is when you run a program with setting of that of the earlier windows operating systems. When ever you want to run a program in compatibility mode, follow these instructions:
Right – click the program file and then click properties.
In the properties dialog box, go to the compatibility tab.
Now check the check box “Run this program in compatibility mode for”
And select the operating system from the drop down list.
Then in the display settings, select the display settings in which the software is supposed to run and click the ok button.
That program will alone run with the settings you have specified.