Indeed the Telerik.Windows.RadUploadHandler
assembly is part of the Silverlight suite of controls and it is usually used to create an UploadHandler
deriving from the RadUploadHandler
class. Can you please examine your solution to see if it the RadUploadHandler
class is used somewhere to create an HTTP handler?
If you can't find a reference to the assembly or if the class isn't used in your solution, you can send us your project/solution so that we can investigate the case further on our side.
the Telerik team
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