Home/ Questions/Q 8874771
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-14T18:48:25+00:00

I have a multi-user Access database which is compacted daily using a powershell script.

  • 0

I have a multi-user Access database which is compacted daily using a powershell script. This script can’t compact the database if there are still users logged in. If there is a user logged in, I would like be able to idenify the user(s) who forgot to logout of the database and remind them to log out at the end of the day.

If I were to write this in VB it would work like this:

Dim cn as ADODB.Connection
Dim rs as ADODB.Recordset
cn.open("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=...mdb")
Set rs = cn.OpenSchema(adSchemaProviderSpecific, ,"{947bb102-5d43-11d1-bdbf-00c04fb92675}")

Then loop through the recordset and get the information I want.

What I would like to do is translate this to PowerShell so it can run with the compact script. I have tried the following:

$objCon = New-Object -ComObject ADODB.Connection
$objRs = New-Object -ComObject ADODB.Recordset
$objCon.Open("Provider=Microsoft.Jet.OLEDB.4.0; Data Source=...mdb")
$objRs= $objCon.OpenSchema([ADODB.SchemaEnum]::adSchemaProviderSpecific,$null,'{947bb102-5d43-11d1-bdbf-00c04fb92675}')
$objRs.MoveFirst()

Then loop through the recordset and find the information I need.

The ps code errors out on the OpenSchema line with:

Exception calling “OpenSchema” with “3” argument(s): “Object or provider is not capable of performing requested operation.”
At FindUsers.ps1:8 char:27
+ $objRs= $objCon.OpenSchema <<<< ([ADODB.SchemaEnum]::adSchemaProviderSpecific,$null,'{947bb102-5d43-11d1-bdbf-00c04fb92675}’)
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException

The script won’t execute if I remove the middle $null variable or replace it with ”, and I don’t know if the command is translated from VB to powershell correctly. I’ve searched on Google and SO and haven’t found any solutions. What do I need to do to use the OpenSchema command?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    This works for me using the newer ACE drivers included with Office 2007 and higher:

    $filepath = "C:\Users\u00\Documents\Northwind.mdb"
[guid]$guid = '947bb102-5d43-11d1-bdbf-00c04fb92675'

$ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=`"$filepath`";Persist Security Info=False;"
$conn = new-object System.Data.OleDb.OleDbConnection($ConnectionString)
$conn.open()
$conn.GetOleDbSchemaTable($guid,$null) 
$conn.close()

COMPUTER_NAME                    LOGIN_NAME 
-------------                    ---------- 
Z002                             Admin
    • 0