Now we've come to a situation where we have some specific signature format (signature embedded in docx [OfficeOpenXML] documents) that is more easily handled using .Net classes, and we have some prototype implementation as a .Net DLL.
What is the technology to use? Would Silverlight be the approach, or is it biased towards RIA, i.e. apps with a visual appearance? If it is a good solution, I will greatly appreciate pointers to tutorials or code samples in that direction. I've had roughly 1 year exposure to .Net (C#) in the past but none to Silverlight.