Bug with CIM_DataFile?

So I was looking at a way with WMI to check the number of open
connections to a file in a server share. I know it can be done other
ways but I want to use WMI. I can check the number of connections to
the share that have open files but I can't see which files the
connections are to by using the Win32_Share, Win32_ServerSession, or
Win32_ServerConnections classes. After looking around MSDN for a few
hours I found the CIM_Datafile class which has a property called
InUseCount.
InUseCount
Data type: uint64
Access type: Read-only
Number of "file opens" that are currently active against the file.
This property is inherited from CIM_LogicalFile.

I used the following line:
Get-WmiObject -Query {Select * From CIM_Datafile Where Name="C:\
\install.log"}|Select-Object *

Which returns all kinds of information about the file. But the
InUseCount is always Null. Even if I have several instances of the
file open its Null. I've looked around quite a bit and several other
people have noticed this but I can't figure out if I'm doing something
wrong, if the property isn't implemented, if its a bug. Does anyone
know anything about this property or another way to check the number
of connections to a file using WMI?

My advice to Kuma as well as *anyone* else which is attempting to use WMI is
to get to know "wmic". This command based tool is invaluable for determining
whether the problem has something to do with Powershell or not.

btw Powershell does have significant problems with impersonation which was
been noted a number of times in this forum. My suggestion is not to use it.

But back to the issue if you run the below command at the prompt you'll see
that "inusecount" is blank

wmic datafile where "path='\\'" list full

Sorry to have to tell you the bad news but you'll need to try a different way.

bob

"Kuma" wrote:

or scriptomatic.hta
"Bob Landau" <BobLandau@xxxxxx> wrote in message
news:5298880C-EBC5-45F0-AC53-C5C896D04A28@xxxxxx