For debugging purpose I'd like to know ways to test OLE DB connection string quickly.
I've found this free software, it works on my machine, tested successfully.
Is there a even quicker way to do so, maybe from command line on Windows? Because most of the time, it is the client rather than me that would do this task, so I prefer a "zero-installation" approach that would impact their system the least.
If the client has PowerShell installed (a given if they are running Windows 7 or Windows Server 2008 R2), then you can execute these commands from a PowerShell console window:
$conn = New-Object System.Data.OleDb.OleDbConnection
$conn.ConnectionString = "Provider=Search.CollatorDSO" # whatever you are testing
$conn.Open()
$conn.Close()