do you mean the run option?
Code:
start\run and type msconfig
You can also look for the original file in the following directories:
C:\WINDOWS\ServicePackFiles\i386\
C:\WINDOWS\PCHealth\HelpCtr\Binaries\
the helps files for this program are located of course in the:
C:\WINDOWS\help\
If none of these files are found on your system, then i would question your copy of XP as these files should not have been removed.