restoring program w/o reinstalling the os

[blinkmus]

i recently installed a DVD writer in a friends computer and uninstalled the software(record now) she had on the computer for ripping and writing disc and what not and installed the nero program that came with the burner.

the computer is a HP with a back up of the installed software on a seprate partion on the hard drive,i was wondering if there might be away to restore the record now without reinstalling the OS .

thanks for any help you can give