OleDbConnection cn=new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Temp\db1.mdb;");
cn.Open();

DataTable tbl=cn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[]{null, null, null, "TABLE"});
for(int i=0; i<tbl.Rows.Count; i++)
  Console.WriteLine("{0}", tbl.Rows[i]["TABLE_NAME"]);