Cannot copy the file exists

I am simply trying to copy a dll file into the Windows\system32 folder in XP Pro SP3.  It keeps saying "Cannot copy <> the file exists"  I've unhidden system files, cannot see it in that folder.  I tried deleting it via command line, says the file cannot be found. I've tried connecting to the system32 folder over the network to copy and it did the same thing...It's also doing this with a few other dll's that I need to copy to the same folder.  I've rebooted, scanned for viruses, updated windows....any ideas?
Sean RhudyPresidentAsked:
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Chris HInfrastructure ManagerCommented:
WhatIs this 64 or 32bit?  What are the dll's you're copying in?  What do you know about merge modules?
Sean RhudyPresidentAuthor Commented:
32 bit, the main dll i'm trying to copy is coreobjx30.dll and I just know the simple definition of merge modules.
Chris HInfrastructure ManagerCommented:
There is a program called icesword which bypasses the kernel and reads the disk direct.  You could try that.

http://icesword.en.softonic.com/
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nobusCommented:
Sean RhudyPresidentAuthor Commented:
Icesword didn't give me any errors, but after I use it to move the file, the problem is still occuring
Sean RhudyPresidentAuthor Commented:
The link to killbox doesn't work, it points to a program called BlitzBank.
nobusCommented:
here a working one :  http://download.cnet.com/KillBox/3000-20432_4-75219891.html
you did reboot by now?
Sean RhudyPresidentAuthor Commented:
That link also does not work, it takes you to an external site which no longer exists.
Sean RhudyPresidentAuthor Commented:
Yes, I have rebooted.  I also checked process explorer to see if any processes were using a file with that name and didn't find anything.  It's very strange.
nobusCommented:
you're right, sorry; it looks they have removed it
try booting from a live knoppix cd, and delete it then
ftp://mirrors.kernel.org/knoppix-dvd/KNOPPIX_V7.0.4bootonly-2012-08-20-EN.iso
Sean RhudyPresidentAuthor Commented:
The file does not show up even booted to a linux live cd...We're going to wipe this machine.

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Sean RhudyPresidentAuthor Commented:
No resolution
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Windows XP

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