Here is only quikc-help(?)
i think, the problem is "the links dll and memory sharing.failed"
a)my solution1 is "store & save the big structure" in the file. res or "Resource"
b)my solution2 is "store & save the big structure" in external DLL or ithe .DLL
you can load the last DLL as RESOURCE_DATA
Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters.