err := windows.GetAdaptersAddresses(syscall.AF_UNSPEC, flags, 0, (*windows.IpAdapterAddresses)(unsafe.Pointer(&b[0])), &l)
		if err == nil {
			if l == 0 {
				return nil, nil
			}
			break
		}
		if err.(syscall.Errno) != syscall.ERROR_BUFFER_OVERFLOW {
			return nil, os.NewSyscallError("getadaptersaddresses", err)
		}
		if l <= uint32(len(b)) {

	IfOperStatusDormant        = 5
	IfOperStatusNotPresent     = 6
	IfOperStatusLowerLayerDown = 7
)

//sys	GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
//sys	GetComputerNameEx(nameformat uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW

	procSetTokenInformation               = modadvapi32.NewProc("SetTokenInformation")
	procProcessPrng                       = modbcryptprimitives.NewProc("ProcessPrng")
	procGetAdaptersAddresses              = modiphlpapi.NewProc("GetAdaptersAddresses")
	procCreateEventW                      = modkernel32.NewProc("CreateEventW")
	procGetACP                            = modkernel32.NewProc("GetACP")

//sys	WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
//sys	GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
//sys	GetACP() (acp uint32) = kernel32.GetACP

	procDwmSetWindowAttribute                                = moddwmapi.NewProc("DwmSetWindowAttribute")
	procGetAdaptersAddresses                                 = modiphlpapi.NewProc("GetAdaptersAddresses")
	procGetAdaptersInfo                                      = modiphlpapi.NewProc("GetAdaptersInfo")
	procGetBestInterfaceEx                                   = modiphlpapi.NewProc("GetBestInterfaceEx")