Can't find windows' CreateThread function / concurrency.spawn crashes host application

[alkololl via Digitalmars-d-learn]

Here is my code:

// File dllmain.d
module dllmain;

import core.runtime;
import std.c.stdlib;
import std.string;
import std.c.windows.windows;

import honmod;


private HINSTANCE g_hInst;


extern (Windows) BOOL DllMain(HINSTANCE hInstance, ULONG 
ulReason, LPVOID pvReserved)
{
	g_hInst = hInstance;
	
	switch (ulReason) {
		case DLL_PROCESS_ATTACH:
			Runtime.initialize();
			break;
			
		case DLL_PROCESS_DETACH:
			Runtime.terminate();
			break;
			
		default:
	}
	
	return true;
}


static this()
{
	honmod.initialize(g_hInst);
	MessageBoxA(null, "Dll Injection successful", "", MB_OK);
}


static ~this()
{
	MessageBoxA(null, "Dll ejected", "", MB_OK);
}




// File honmod
module honmod;

import std.concurrency;
import std.c.windows.windows;
import core.thread;


private HINSTANCE _hModule;



// The quit thread waits until F7 gets pressed and then frees the 
module
private void quitThread()
{
	while (true) {
		// KeyDown
		if (GetAsyncKeyState(VK_F7) & 0x0001) {
			break;
		}
		
		Sleep(1);
	}
	
	FreeLibraryAndExitThread(_hModule, 0);
}


void initialize(HINSTANCE hModule)
{
	_hModule = hModule;
	
	// Spawn the quit thread
	new Thread(&quitThread).start();
}