TDL: [Field: Test Fld] Use : Name Field Set as : "Hello"+ @SomeString Set Always : Yes Read Only : Yes SomeString:$$CallDllFunction: Project3:HelloWorld3 -------------------- C++ #include <windows.h> #include <iostream> #include <string> using namespace std; #include <OleAuto.h> //does not work extern "C" __declspec(dllexport) wchar_t* __stdcall HelloWorld3() { wchar_t* c = (wchar_t*) "Hello World"; return SysAllocString(c); } //does not work extern "C" __declspec(dllexport) const char* __stdcall HelloWorld4() { return "Hello World"; } What data type syntax to use so that the returned string is displayed in TDL field ?? Thanks in advance..