HANDLE h = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
	if (h != INVALID_HANDLE_VALUE)
	{
		THREADENTRY32 te;
		te.dwSize = sizeof(te);
		if (Thread32First(h, &te)) {
			do
			{
				if (te.dwSize >= FIELD_OFFSET(THREADENTRY32, th32OwnerProcessID) + sizeof(te.th32OwnerProcessID))
				{
					if( GetProcessId( GetCurrentProcess() ) == te.th32OwnerProcessID )
						SetThreadContext( OpenThread(THREAD_ALL_ACCESS, 0, te.th32ThreadID), &ctx);
				}
				te.dwSize = sizeof(te);
			}
			while (Thread32Next(h, &te));
		}
		CloseHandle(h);
	}