Trying to create DLL from VI to use in TestStand.

Question

I trying to create a DLL out of an existing VI file.  The VI has about 4 inputs and about 3 outputs.  If I go to Tools >> Build Application and select the Build Target as a "Shared Library (DLL)" i get a dll after the build; but when I try to call that DLL from teststand, it doesn't recognize any of the inputs or outputs.  How do I build a DLL so that teststand will reconize the inputs and outputs?
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Answer 1

The controls and indicators are connected to the connectors.  Also, answering an earlier post, the prototype information for the inputs and outputs are not automatically displayed. I can manually define the prototypes, but then the question is how does each prototype link to its corresponding parameter (by name?). I've also tied creating just a simple VI that has just one string input and one string output.  I built the VI to a DLL and tried calling in TestStand and i get the same results.  I've inserted the resulting header file after that build.  Which, by the way, looks exactly like my other created DLL's header file.  The difference in bold(the name of the VI). Which makes me thik that my build DLL process might be off.
#include "extcode.h"
#pragma pack(push)
#pragma pack(1)
#ifdef __cplusplus
extern "C" {
#endif
void __stdcall String_input_output(void);
long __cdecl LVDLLStatus(char *errStr, int errStrLen, void *module);
#ifdef __cplusplus
} // extern "C"
#endif
#pragma pack(pop)