Probably what's missing is that the __stdcall convention "decorates" the
routine name by prefixing an underscore and suffixing the number of bytes
in the function's argument list.  A function named "multiply" that takes

You can simply add this as an Alias in your Declare for the function, or
you can export the function from the DLL using a .DEF file, which makes the
undecorated name the public name.

        -- Jim

consider the following example function prototype (VC4.2)

STDAPI_(BOOL) IsInterfaceSupported(LPUNKNOWN punkThisObject, char*
szInterfaceIID)

The problem is the Pascal calling convention and name decoration.
You need to use an alias in your def file like so:

EXPORTS

 The
eight was computed because both arguments to the sample function are 32bit
(ie, 4 byte)
values.  If you added a third interface pointer as a parameter (another
32bit value), you

Hope this helps,
Peter Cousins
NT/COM Consultant