//sys	FreeLibrary(handle Handle) (err error)
//sys	GetProcAddress(module Handle, procname string) (proc uintptr, err error)
//sys	GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW
//sys	GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW
//sys	SetDefaultDllDirectories(directoryFlags uint32) (err error)