diff --git a/code/client/connect.go b/code/client/connect.go
index d8dda9f..96a156b 100644
--- a/code/client/connect.go
+++ b/code/client/connect.go
@@ -74,7 +74,7 @@ func shellCreate(mgr *tunnel.Mgr, conn *pool.Conn, msg *network.Msg) {
 	lk.Forward()
 }
 
-func vncCreate(mgr *tunnel.Mgr, conn *pool.Conn, msg *network.Msg) {
+func vncCreate(confDir string, mgr *tunnel.Mgr, conn *pool.Conn, msg *network.Msg) {
 	create := msg.GetCreq()
 	tn := mgr.Get(create.GetName(), msg.GetFrom())
 	if tn == nil {
@@ -88,7 +88,7 @@ func vncCreate(mgr *tunnel.Mgr, conn *pool.Conn, msg *network.Msg) {
 	}
 	lk := tn.NewLink(msg.GetLinkId(), msg.GetFrom(), msg.GetFromIdx(), nil, conn).(*vnc.Link)
 	lk.SetQuality(create.GetCvnc().GetQuality())
-	err := lk.Fork()
+	err := lk.Fork(confDir)
 	if err != nil {
 		logging.Error("create vnc failed: %v", err)
 		conn.SendConnectError(msg.GetFrom(), msg.GetFromIdx(), msg.GetLinkId(), err.Error())
diff --git a/code/client/main.go b/code/client/main.go
index 7230bec..cfb2c92 100644
--- a/code/client/main.go
+++ b/code/client/main.go
@@ -40,7 +40,8 @@ func showVersion() {
 }
 
 type app struct {
-	cfg *global.Configure
+	confDir string
+	cfg     *global.Configure
 }
 
 func (a *app) Start(s service.Service) error {
@@ -98,7 +99,7 @@ func (a *app) run() {
 						case network.ConnectRequest_shell:
 							shellCreate(mgr, conn, msg)
 						case network.ConnectRequest_vnc:
-							vncCreate(mgr, conn, msg)
+							vncCreate(a.confDir, mgr, conn, msg)
 						}
 					default:
 						linkID = msg.GetLinkId()
@@ -166,11 +167,13 @@ func main() {
 
 	if *act == "vnc.worker" {
 		defer utils.Recover("vnc.worker")
+		logging.SetSizeRotate(cfg.LogDir, "np-cli.vnc", int(cfg.LogSize.Bytes()), cfg.LogRotate, true)
+		defer logging.Flush()
 		vnc.RunWorker(uint16(*vport))
 		return
 	}
 
-	app := &app{cfg: cfg}
+	app := &app{confDir: *conf, cfg: cfg}
 	sv, err := service.New(app, appCfg)
 	runtime.Assert(err)
 
diff --git a/code/client/tunnel/vnc/core/process.go b/code/client/tunnel/vnc/core/process.go
index 69a5624..6b9b126 100644
--- a/code/client/tunnel/vnc/core/process.go
+++ b/code/client/tunnel/vnc/core/process.go
@@ -52,6 +52,7 @@ func (p *Process) listenAndServe() (uint16, error) {
 var upgrader = websocket.Upgrader{EnableCompression: true}
 
 func (p *Process) ws(w http.ResponseWriter, r *http.Request) {
+	logging.Info("child process connected")
 	conn, err := upgrader.Upgrade(w, r, nil)
 	if err != nil {
 		http.Error(w, err.Error(), http.StatusInternalServerError)
diff --git a/code/client/tunnel/vnc/core/process_windows.go b/code/client/tunnel/vnc/core/process_windows.go
index a69311f..8c61ee3 100644
--- a/code/client/tunnel/vnc/core/process_windows.go
+++ b/code/client/tunnel/vnc/core/process_windows.go
@@ -76,15 +76,15 @@ func getSessionUserTokenWin() windows.Token {
 }
 
 // CreateWorkerProcess create worker process
-func CreateWorkerProcess() (*Process, error) {
+func CreateWorkerProcess(confDir string) (*Process, error) {
 	tk := getSessionUserTokenWin()
 	if tk != 0 {
 		defer windows.CloseHandle(windows.Handle(tk))
 	}
-	return createWorker(tk)
+	return createWorker(confDir, tk)
 }
 
-func createWorker(tk windows.Token) (*Process, error) {
+func createWorker(confDir string, tk windows.Token) (*Process, error) {
 	dir, err := os.Executable()
 	if err != nil {
 		return nil, err
@@ -101,7 +101,7 @@ func createWorker(tk windows.Token) (*Process, error) {
 	startup.Cb = uint32(unsafe.Sizeof(startup))
 	startup.Desktop = windows.StringToUTF16Ptr("WinSta0\\default")
 	startup.Flags = windows.STARTF_USESHOWWINDOW
-	cmd := windows.StringToUTF16Ptr(dir + fmt.Sprintf(" -action vnc.worker -vnc %d", port))
+	cmd := windows.StringToUTF16Ptr(dir + fmt.Sprintf(" -conf %s -action vnc.worker -vport %d", confDir, port))
 	if tk == 0 {
 		err = windows.CreateProcess(nil, cmd, nil, nil, false, windows.DETACHED_PROCESS, nil, nil, &startup, &process)
 	} else {
diff --git a/code/client/tunnel/vnc/link.go b/code/client/tunnel/vnc/link.go
index 64a6427..0b2ae23 100644
--- a/code/client/tunnel/vnc/link.go
+++ b/code/client/tunnel/vnc/link.go
@@ -65,8 +65,8 @@ func (link *Link) SetQuality(q uint32) {
 }
 
 // Fork fork worker process
-func (link *Link) Fork() error {
-	p, err := core.CreateWorkerProcess()
+func (link *Link) Fork(confDir string) error {
+	p, err := core.CreateWorkerProcess(confDir)
 	if err != nil {
 		return err
 	}