Unable to install or emulate XP in Windows 7 or Windows 8?
On Windows 7 or Windows 8, Microsoft provides a compatibility tab.
On this tab, you can select the earlier version of Windows.
How to access the compatibility tab?
Find the installer of your program.
Right click on the installer and click on properties.
The properties option for the installer will be displayed.
Click on "Compatibility" tab.
And tick the option, "Run the program in compatibility mode for:"
Click the drop down arrow and select the operating system.
Click on "Apply" and click OK.
Double click the installer to run the installation.
See screen shot below:
Enjoy using old programs, if still serve the purpose.