portable search

Anybody who know about any portable application that can search through my hard drive? On one computer I use ( not my own computer) i cant use the basic "search" thing because the administrator on the computer have made it so that no one without admin account type cant use the "search" option in win xp So if anybody have some suggestion to what kind of software I could use, would be fine. I want to have a stand alone program that can do that.