Get rid of Control Panel,Device Manager,etc.. in desktop right-click

Hey Actually what happened is I got some .ico files and some regdit file that guy who gave it just wrote to copy it and give merge and i now get Control Panel,Device Manager,etc.. in my desktop right-click background so i need to know how to delete those items from my context menu of desktop Please Do reply yaar pls pls

Here, hope this helps: Edit Context Menu Items In Windows 7 & Vista