If you have an earlier version of program or the application which is not compatible with Windows 7, then you can run it in compatibility mode. You can use this feature if you know for which Windows version, the program will be compatible. For Example, you can run an earlier version of program in compatibility mode for Windows 95, Windows 98, Windows ME, Windows NT 4.0 (Service Pack 5), Windows 2000, Windows XP (Service Pack 2), Windows XP (Service Pack 3), Windows Server 2003 (Service Pack 1), Windows Server 2008 (Service Pack 1), Windows Vista, Windows Vista (Service Pack 1), and Windows Vista (Service Pack 2).
To run an earlier version of program in compatibility mode in Windows 7, follow the below given steps:
1) Right click on the .exe file of the program or the application and click on “Properties”.
2) Go to Compatibility tab.
3) Check option “Run this program in compatibility mode for”
4) Then, from the drop down menu select the version of the Windows for which this program is compatible.
5) Under Settings, you can choose any options as per your requirements: Run in 256 colors, Run in 640 x 480 screen resolution, Disable visual themes, Disable desktop composition, and Disable display scaling on high DPI settings. If you are unsure of these options, you can leave them unchecked.
6) Under Privilege level, you can check option “Run this program as an administrator” if you want to run the particular program as an administrator.
7) Click on “Apply”, and then, “OK”.
If you are not sure about the version of Windows for which the program would be compatible, or if you are unsure about the settings for the program, then you can try the Program compatibility wizard to troubleshoot compatibility problems.