Colin,

I have already reported the problem to Jason and an immediate fix that comes
into my mind (and that I have applied successfully) is to rename the
Zlib.pas file to something else, for example IBO_Zlib.pas and to change the
corresponding declaration in the uses clause of
IB_OleContainer.pas that is the only file to use it and of course the
declaration in the contains section of IBO40VRT_Xx.dpk packages.

Regards
Salvatore