You should only use this hotfix if all of the below conditions are met:

• You use Aspose.Recurrence and want to continue using Aspose.Recurrence. You don't want to upgrade to Aspose.iCalendar because that requires changes to your code.
• You can no longer use the existing license for Aspose.Recurrence. Either because you changed computer or domain name or any other reason.

To resolve this situation do the following:

1. Request the Aspose.Sales team to issue you a new license for Aspose.iCalendar. The upgrade is free, but you need to quote your old order number or provide other details such as company and contact person name so we can identify your order.
2. Download Aspose.Recurrence 1.1.15 and use it with the Aspose.iCalendar license. This hotfix is made just to allow using Aspose.Recurrence.dll with an Aspose.iCalendar license.

When using Aspose.Recurrence 1.1.15 with an Aspose.iCalendar license, you need to modify your licensing code to:

Aspose.Recurrence.License l = new Aspose.Recurrence.License();
l.SetLicense("Aspose.iCalendar.lic");

The downloads page http://www.aspose.com/Products/Aspose.Recurrence/Downloads.html