think that the Sysinternals Tools have some program to show what programs hold a filehandle to a file,

Yes. it is called handle.exe: 

C:\test>handle /?

Handle v3.42
Copyright (C) 1997-2008 Mark Russinovich
Sysinternals - www.sysinternals.com

usage: handle [[-a [-l]] [-u] | [-c <handle> [-y]] | [-s]] [-p <proces
+s>|<pid>] [name]
  -a      Dump all handle information.
  -l      Just show pagefile-backed section handles.
  -c      Closes the specified handle (interpreted as a hexadecimal nu
+mber).
          You must specify the process by its PID.
          WARNING: Closing handles can cause application or system ins
+tability.
  -y      Don't prompt for close handle confirmation.
  -s      Print count of each type of handle open.
  -u      Show the owning user name when searching for handles.
  -p      Dump handles belonging to process (partial name accepted).
  name    Search for handles to objects with <name> (fragment accepted
+).

No arguments will dump all file references.

[download]
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^4: Rename unreliable on Windows by BrowserUk
in thread Rename unreliable on Windows by elef

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