I just want to share my solution. In IIS7 if you are utilizing integrated mode, you might get an error that SpellCheckHandler is not registered in web.config.
If IIS is uzing integrated mode then the handlers have to be defined under
If IIS is uzing integrated mode then the handlers have to be defined under
<
system.webServer>
<
handlers>
<
add name="SpellCheckHandler_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.SpellCheckHandler.axd" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI" />
