Hi all, In my first topic i had a problem about using variant’s in c#. Still got that problem so i tried something else. I made a c++ console application. Clean and simple: // cplusplustest.cpp : Defines the entry point for the console application. // #include “stdafx.h” #include “cf.h” int _tmain(int argc, _TCHAR* argv[]) { DBL_U8 Str[50]; DBL_DATE cDate; printf (“Provide Number: “); scanf (”%s”,Str); //sprintf(Str,“07-06-96”); DBL_Str_2_Date(&cDate,Str); printf (“Date is: %s”,cDate); getchar(); return 0; } It keep giving me a unresolved external symbol. The DBL_Str_2_Date has some wrong params i gues. In cf.h is (DBL_CDECL *tDBL_Str_2_Date)(DBL_DATE *Date, DBL_U8 *Str); defined like that. The code i made is Exactly the same as in de reference of c/front[?]