First check your taskbar near your clock for this image,

If you see this image but its red do not worry, if you don’t see the image go start > all programs > daemon tools > daemon this will load the software and show the icon wither green or red in your taskbar.

Right once you have the software loaded in your taskbar right clock on the image a go virtual cd/dvd rom drive look at the image below,

The select device 0 [f] no media, this should open another menu like so

Click mount image, in the pop box that appears find your image of the game, and click open, this will mount the image in to daemon tools ready for use, and that’s all there is to it, hope this helped.