If your friend wants to delete that particular index.dat file, he'll need to do it from Safe Mode with another user account that has Administrative privileges.
Programs such as this, that claim to remove all traces of Internet surfing or activity rarely work correctly, or completely ... simply because certain files such as this can't be removed from within a user's account while the profile is loaded.
The last time I removed the IE index.dat file, I booted up as the system administrator and into Safe Mode, which made deleting the file a snap. However ... in WinXP, making the file <i>visible</i> is the problem, because this is considered a super hidden file, and Windows Explorer won't allow the file to be viewed.
I use a third-party file manager, like <A HREF="http://www.ghisler.com/" target="_new">Total Commander</A> to access the folder which contains the file. The file path is:
C:\Documents and Settings\User Name\Local Settings
Temporary Internet Files\Content.IE5.
The .dat file should really only be deleted if it has become very large, or corrupted, FYI. But the subdirectories of the Content.IE5 folder can and should be emptied on a regular basis. (The subdirectories shouldn't be removed, BTW ... only emptied, or upon a reboot, there will be eight folders instead of four! And so on, and so forth.) Choosing to delete the Temporary Internet Files under Internet Properties simply won't remove everything, every time. This is why I like to have a different file manager to use, and one that can display super hidden files in the options menu. It comes in handy.
But if your friend doesn't like the idea of getting a separate file manager, searching around on Google for .dat viewers should bring up some useful results. A program like <A HREF="http://www.fsm.nl/ward/ " target="_new">Spider</A> can also be helpful for removing .dat files.
Toey
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