Resource Lock and the Power Shell

is there a way to use the windows power shell to trace what application has a resource lock on a file?

Here is what i am looking for:

• A command line or script to show the application that has a lock on a file.
• A bonus to the above wold be detection of the user account that has the lock and how long the lock has persisted.

Follow up:

• There is a power tool by SysInternals that will allow you to capture a full dump in the command shell of the above.

• I found a script that appears to do the job as well (replace with the full path and file you want to see):

  PS> $handle = handle

  PS> foreach ($line in $handle) { if ($line -match '\S+\spid:') { $exe = $line } elseif ($line -match '') { "$exe - $line" } }