Including an active form in another active form

I have a BCB 6 created active form that needs to include another BCB 6
created active form.  When I drop the second active form on my first and
compile, I get bunches of compile errors like below.

[C++ Error] ACFoldersImpl.cpp(126): E2015 Ambiguity between
'TxActiveFormBorderStyle' and 'Acfolders_tlb::TxActiveFormBorderStyle'

I am obviously not doing something correct, or is there no way to have an
active form inside another?

Thanks for any help,