Ok, if u have the ip address, then u have to cionvert it to the ip number and then on referring to some datasheet u can match this ip numer to its location
Goto start, choose run and then type regedit. Select HKEY_CLASSES_ROOT and then goto directory, and under directory u will find keys named shell (or) shellex. Expand these keys to find out which of the right click options they represent. Delete the ones that u do not want.