1, in the Win7 system to use the regedit Run command, open the Registry Editor;
2, in the Registry Editor interface, expand the "hkey_classes_root*" item in turn, click the right mouse button on the * item, select "New" to create a new subkey in the menu, and name it "Shell", and enter the third step directly;
3, to the "Shell" child right click again, still select "New" in the menu, and then create a new "Openwith" subkey, in the right window;
4, double-click the default value in the right window, in the edit string interface, set the data value to "open mode";
5, the same method, under "Openwith", and then build a "Command" subkey, and set its default value to "C:windowsrundll32.exe shell32.dll,openas_rundll%1", and then close Registry Editor;
6, restart the computer, we will find the right key menu "open mode" option appears!