DHTML Edit Control is an ActiveX control provided by Microsoft, they provide with it a sample app, this code is built on that app but much enhanced, to get the DHTML control goto: http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnaredcom/html/cncpt.asp also the project refrences WinMain s CodeMax control, if u don t have it, remove the refernce and replace it with a richtext box.....or whatever :-)