// ConvertStringToBSTR.cpp
#include <comutil.h>
#include <stdio.h>

#pragma comment(lib, "comsuppw.lib")
#pragma comment(lib, "kernel32.lib")

int main() {
   char* lpszText = "Test";
   printf_s("char * text: %s\n", lpszText);

   BSTR bstrText = _com_util::ConvertStringToBSTR(lpszText);
   wprintf_s(L"BSTR text: %s\n", bstrText);

   SysFreeString(bstrText);
}

char * text: Test
BSTR text: Test