Description of the
system File Protection feature
SUMMARY
This article describes the System File Protection feature in
Windows Millennium Edition (Me).
MORE INFORMATION
System File Protection (SFP) is a feature implemented in Windows
Me that ensures files critical to system operation are not
replaced by older versions or versions not approved by
Microsoft. Any product can replace system files only if the file
is shipped with a catalog signed by Microsoft that references a
newer file version. If a product, including Microsoft products,
attempts to replace a Windows Millennium protected file with an
older version of a protected file, the files will be
automatically replaced with the protected files. If an installer
program or user copies over or deletes a core system file, SFP
"silently" restores the original version of the file. SFP does
not display an error message or any other type of message during
this process. It is important to note that SFP cannot be turned
off.
SFP maintains a log of all protected files that have been
replaced. The log file, Sfplog.txt, is in the Windows\System\SFP
folder. If there are any entries in the log file (other
than the log entry that is added when Windows first starts),
then SFP had to protect some files. This should not affect the
functionality of the programs installed on your computer.
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