Thank you for writing.
Our suite does not have a SpellChecker control yet. Such a request is already added to our PITS system. Please follow this link
, where you can add your vote for this request and you may see such a control in one of the next releases.
Should you have any other questions, do not hesitate to contact us.
the Telerik team
Q1’11 SP1 of RadControls for WinForms is available for download
; also available is the Q2'11 Roadmap
for Telerik Windows Forms controls.