System.Security.SecurityException 'occurred in System.Data.dll error

I am trying to connect a VB project to an Access Database.  The Access Database is in use.  I seem to be able to connect when the database is not in use but then I lock out the operators that need the program that runs from the Access database.  I have verified that the Access database has "open mode is Shared and the preferred default record locking is none. My code is:

Imports System
Imports System.Data
Imports System.Data.OleDb
Imports System.Data.OleDb.OleDbPermission
Imports System.Security
Imports System.Security.Permissions



Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim con As New OleDb.OleDbConnection
        Dim permission As OleDbPermission = New OleDbPermission(PermissionState.None)
        con.ConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=\\Computer Name\c$\Program Files\Folder Name\AccessDBName.mdb"
        con.Open()
        Debug.WriteLine("A Connection to the Database is now open")
        con.Close()
        Debug.WriteLine("A Connection to the Database is now closed")
    End Sub
End Class

I really need help on this.  An associate of mine is able to connect to a similar database using VB6 at a different location.
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