I think the only use I've ever had for it was for reading some rtf licenses and documents, before connecting the computer to internet and installing something b

I think the only use I've ever had for it was for reading some rtf licenses and documents, before connecting the computer to internet and installing something better. Actually as others said, since it's simply a Rich Edit wrapper they could just leave it; at least they could leave a view-only version, although the editing features are in all likelihood equally simple. Any vulnerability it might have is probably present in the controls themselves rather than its code.