I am working on a big database project using Borland Pascal with
Objects 7.0 and BC++4.5. What kind of problems could I run into if I
created new parts (dll's exe's) in Delphi 1.0?

____
Mike E. Fullerton   | UNIX, Quotations, Science, Skepticism
cmat...@spots.ab.ca | http://www.spots.ab.ca/~cmatrix/

D1 will actually compile most of the OWL based programs.  Exceptions
relate to the new keywords message, except, on, etc, and most often
Result.
I'd still recommend moving the code to be "real" Delphi code - changing
the objects to classes, etc.  For non-visual stuff this is usually done
fairly quickly - most os the time is spent removing the "^" and changing
the allocations.  For tdialogs, tdialogwins is far more difficult.
There is an expert that will at least convert the layout of the
interface from an rc file to a form but all the actions will have to
be ported one by one.  But it's worth it in the long run.

Hope this helps,
Jochen