You can easily send meeting requests to one or more attendees using Aspose.Network. The latest version now comes with the cancel meeting request feature. Please check out the details at http://www.aspose.com/documentation/file-format-components/aspose.network-for-.net/cancel-meeting-requests-with-calendar.html. The latest version of Aspose.Network is available from http://www.aspose.com/community/files/51/file-format-components/aspose.network/category1102.aspx.