SVCHOST.EXE in Windows\Prefetch???

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I've found that I have not only svchost.exe in my System32, but also a
'capitalized SVCHOST-3530F672.pf in my Windows\Prefetch (it's 90 kb in
size). Somewhere I read that this is not a legitimate file and should be
deleted. However, before I do so, would someone confirm and explain about
this file. Thanks. Also, I've been told that I can delete the contents of
the prefetch folder and that it will simply rebuild itself. True or not?
Thanks.......


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