public void Run()
{
// NetOffice instances implements the IClonable interface
// and deal with underlying proxies as well
Excel.Application application = new Excel.ApplicationClass();
application.DisplayAlerts = false;
Excel.Workbook book = application.Workbooks.Add();
// clone the book
Excel.Workbook cloneBook = book.Clone() as Excel.Workbook;
// dispose the origin book keep the underlying proxy alive
// until the clone is disposed
book.Dispose();
// alive and works even the origin book is disposed
foreach (Excel.Worksheet sheet in cloneBook.Sheets)
{
Console.WriteLine(sheet);
}
application.Quit();
application.Dispose();
HostApplication.ShowFinishDialog();
}