GetOleDbSchemaTable(OleDbSchemaGuid.Indexes, ...) always returning zero rows access database - vb.net

Question

When querying an Access 2000 database, using:
schemaTable = cn.GetOleDbSchemaTable(OleDbSchemaGuid.Indexes, New Object() {Nothing, Nothing, tableName})
Where cn is a valid and open connection, schemaTable always contains zero rows, despite the tableName specified having many indexes.
This documentation, here http://msdn.microsoft.com/en-us/library/cc668764.aspx suggests that MS Access provides this information.
What gives?

Answer 1

It appears that when retrieving .Indexes the third member of the restrictions array corresponds to the Index name, not the Table name. So to retrieve the indexes for a given table it looks like we need to retrieve all of the indexes (no restrictions) and then filter out the ones we don't want.
The following C# code works for me:
using (OleDbConnection con = new OleDbConnection())
{
con.ConnectionString = myConnectionString;
con.Open();
object[] restrictions = new object[3];
System.Data.DataTable table = con.GetOleDbSchemaTable(OleDbSchemaGuid.Indexes, restrictions);
// Display the contents of the table.
foreach (System.Data.DataRow row in table.Rows)
{
string tableName = row[2].ToString();
if (tableName == "Clients")
{
foreach (System.Data.DataColumn col in table.Columns)
{
Console.WriteLine("{0} = {1}",
col.ColumnName, row[col]);
}
Console.WriteLine("============================");
}
}
con.Close();
}