[Solved] Determine if the workbook i open is already open by another user

Determine if the workbook i open is already open by another user

I have a macro that i would like to run when a Workbook is opened, but i do not want it to run if it is open by another user as the changes made will not be saved as the same file name.
 
I found the below code and have adapted it to fit.
It originally had and extra line under "CRSLogWB = ...." which was "Set MyWorkBook = Workbooks.Open(CRSLogWB)" But i took this out as i didn't need to open the file as it was already open.
 
This is what i have at the moment.
 
Private Sub Workbook_Open()
   
    Dim CRSLogWB As Workbook
    CRSLogWB = "\\UKBOMS01\OriginationsData\CRS\CRS LOG\CRS ORDER PROGRESS Log.xls"
    If CRSLogWB.ReadOnly Then
        MsgBox "Macro cannot update CRS Log this time, someone is currently using file."
        Exit Sub
    Else: Call update2013
    End If
   
   
End Sub
 
It is giving me an error - "Run-time error '91': Object variable or With block variable not set" on Line - "If CRSLogWB.ReadOnly Then".
 
Could anyone tell me where i have gone wrong.
 
Kinds regards in advance

Anwsers to the Problem Determine if the workbook i open is already open by another user

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Unfortunately, this does not work in this instance as this is to be posted in the "Private Sub Workbook_Open()" of the CRSLogWB so that when i physically open the workbook, it will only run the macro if no-one else has it open.
Then I probably just misunderstood.

If you want to check in the file itself if it has the readonly state, use the code below.

Andreas.

Private Sub Workbook_Open()
  If ThisWorkbook.ReadOnly Then
    MsgBox "Macro cannot update " & ThisWorkbook.Name & " this time."
    Exit Sub
  End If
  update2013
End Sub

To check for Windows updates

1. Open Windows Update by clicking the Start button Picture of the Start button, clicking All Programs, and then clicking Windows Update.
2. In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer.
3. If any updates are found, click Install updates. Administrator permission required If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

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