If you want a "single" file you'll have to put a form class in the vcx. If you have it as an .scx and your RTF class has a DO FORM, the .scx will get added to the project the next time they build after they drop the RTF class on one of their forms.
>The thing is that I'm trying to make a class that anyone could just drop on a form. I'd like to make it so all they need is the .VCX. If I make the forms classes, I can put them in the .VCX.