Have you actually looked in C:\Windows\System32 folder to determine
whether or not the file (msconfig.exe) is truly missing?
It might simply be that your Path Statement is screwed up, and
lacking the normal entries for WinXP's system folders. Therefore, WinXP
doesn't know how to find the applications.
It should look something like this:
To edit the Path, right-click My Computer > Properties > Advanced >
Environmental Variables. In the System Variables windows, highlight
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