Passing a Structure with a string array from VB6 to VC++ 6

[Linux Inquirer]

Hi Guys,

I need to pass a C structure of this form from VB6 <-> VC++ 6

struct BTag
{
int rowIndex;
BSTR* valueList;

} B;

struct ATag
{
BSTR* propNameList; // correspond to columns
struct B* values; // rows in the result views
}A;

I'd like to pass a table (A above) with rows and cols. Table header is
in the 1D array called propNameList in A and rows of data are in B as
a 1D array strings.

This thing works if I have simple UDTs - ie no arrays inside
structures. I can even pass an array of simple UDTs but with this one
- I get a message saying 'Variable uses an Automation Type not
supported in Visual Basic' when in VB I say - "Dim x As A"

(Note - VB understands A so I know DLLs etc are in place but it won't
compile..)
So is there a limitation on how complex a UDT can get or am I missing
something here..? Any other proposal to successfully exchange row-col
data is most welcome.

Thanks,
Aditya