LdrLoadDll Demo, C++ (vc++)

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#define UNICODE
#define _UNICODE

#include <windows.h>
#include <subauth.h>
#include <assert.h>
#include <iostream>

#pragma comment (lib, "ntdll.lib")

typedef void (__stdcall *LdrLoadDll) (
    IN PWCHAR               PathToFile OPTIONAL,
    IN ULONG                Flags OPTIONAL,
    IN PUNICODE_STRING      ModuleFileName,
    OUT HMODULE *           ModuleHandle);

typedef void (__stdcall *RtlInitUnicodeString)(
    PUNICODE_STRING DestinationString,
    PCWSTR          SourceString);

int main ()
{
    HMODULE ntdllHandle = LoadLibrary (L"ntdll.dll");
    assert (ntdllHandle);

LdrLoadDll LdrLoadDllStruct = (LdrLoadDll) GetProcAddress (ntdllHandle, "LdrLoadDll");
    assert (LdrLoadDllStruct);
    RtlInitUnicodeString RtlInitUnicodeStringStruct = (RtlInitUnicodeString) GetProcAddress (ntdllHandle, "RtlInitUnicodeString");
    assert (RtlInitUnicodeStringStruct);

HMODULE hModule = 0;
    UNICODE_STRING unicodestring;
    RtlInitUnicodeStringStruct (&unicodestring, L"USER32.dll");
    LdrLoadDllStruct (NULL, 0, &unicodestring, &hModule);
    std::cout << hModule << "\n";
}

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Compilation time: 2,37 sec, absolute running time: 0,34 sec, absolute service time: 2,72 sec