#Creating an ActiveX Control
http://msdn.microsoft.com/en-us/library/aa229115(v=VS.60).aspx
#Create ActiveX in .NET Step by Step
http://www.codeproject.com/Articles/24089/Create-ActiveX-in-NET-Step-by-Step
#How to host ActiveX controls in a Web form
http://support.microsoft.com/kb/317392
crypto lib for js, on Stanford University site: