the injected dll

Dll.dll

#include <windows.h>
#include <TlHelp32.h>

VOID WorkerRoutine() {
	MessageBox(NULL, "injected", "injected", MB_CANCELTRYCONTINUE);
}

BOOL APIENTRY DllMain( HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved )
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
	{
		DisableThreadLibraryCalls(hModule);	
				WorkerRoutine();
	}
		break;
		
    case DLL_THREAD_ATTACH:
		break;
    case DLL_THREAD_DETACH:
		break;
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}