🚀 go-pugleaf

I am trying to get a project written in Borland C++ Builder 
v6 to work on my Developer Studio 2006 evaluation copy (before I spring 
for the license). To date, I have been unable to compile. My major 
roadblock is when it chokes because it is "Unable to open include file 
'assert'" This is specified in the source file as:
#include <assert>
which is correct. Also the configurations seem ok for both the Paths and
Defines sections of C++:  Compiler: $(BDS)\include
                          Linker:   $(BDS)\lib
where $(BDS) points to my C:\Program Files\Borland\BDS\4.0. I presume 
that was installed w/ the Developer Studio. I am able compile if I change it to the older method:
#include <assert.h>  (but choose not to because there are too many) 

Please note that I typically work w/ the MS Visual Studio which is 
installed on my PC. I shouldn't think that it would interfere w/ the 
Borland Developer Studio.

Any help you can offer within a short time would be greatly appreciated.