diff --git a/contrib/build/build_all.go b/contrib/build/build_all.go
index 941c5c7..2a9d379 100644
--- a/contrib/build/build_all.go
+++ b/contrib/build/build_all.go
@@ -82,18 +82,25 @@ var targets = []target{
 	{
 		os:   "windows",
 		arch: "arm",
-		// TODO: cc, cxx?
+		cc:   "x86_64-w64-mingw32-gcc", cxx: "x86_64-w64-mingw32-g++",
 		ext: ".exe", packExt: ".zip",
 	},
 	{
 		os:   "windows",
 		arch: "arm64",
-		// TODO: cc, cxx?
+		cc:   "x86_64-w64-mingw32-gcc", cxx: "x86_64-w64-mingw32-g++",
 		ext: ".exe", packExt: ".zip",
 	},
 }
 
 func main() {
+	logging.Info("go env...")
+	cmd := exec.Command("go", "env")
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Env = os.Environ()
+	runtime.Assert(cmd.Run())
+
 	os.RemoveAll(releaseDir)
 	runtime.Assert(os.MkdirAll(releaseDir, 0755))
 	bindata()
@@ -150,13 +157,6 @@ func build(t target) {
 	err = copyFile("CHANGELOG.md", path.Join(buildDir, "CHANGELOG.md"))
 	runtime.Assert(err)
 
-	logging.Info("go env...")
-	cmd := exec.Command("go", "env")
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	cmd.Env = os.Environ()
-	runtime.Assert(cmd.Run())
-
 	ldflags := "-X 'main.gitHash=" + gitHash() + "' " +
 		"-X 'main.gitReversion=" + gitReversion() + "' " +
 		"-X 'main.buildTime=" + buildTime() + "' " +
@@ -164,7 +164,7 @@ func build(t target) {
 		"--extldflags '-static -fpic -lssp'"
 
 	logging.Info("build server...")
-	cmd = exec.Command("go", "build", "-o", path.Join(buildDir, "np-svr"+t.ext),
+	cmd := exec.Command("go", "build", "-o", path.Join(buildDir, "np-svr"+t.ext),
 		"-ldflags", ldflags,
 		path.Join("code", "server", "main.go"))
 	cmd.Stdout = os.Stdout
@@ -182,7 +182,7 @@ func build(t target) {
 		fmt.Sprintf("CC=%s", t.cc),
 		fmt.Sprintf("CXX=%s", t.cxx))
 	args := []string{"build", "-o", path.Join(buildDir, "np-cli"+t.ext), "-ldflags", ldflags}
-	if t.os == "windows" && (t.arch == "amd64" || t.arch == "386") {
+	if t.os == "windows" && !strings.Contains(t.arch, "arm") {
 		args = append(args, "-tags", "vnc")
 		env = append(env, "CGO_ENABLED=1")
 	}
diff --git a/go.mod b/go.mod
index 9285c43..61aed40 100644
--- a/go.mod
+++ b/go.mod
@@ -6,13 +6,20 @@ require (
 	github.com/creack/pty v1.1.17
 	github.com/dustin/go-humanize v1.0.0
 	github.com/go-bindata/go-bindata/v3 v3.1.3
+	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-vgo/robotgo v0.100.3
 	github.com/gorilla/websocket v1.4.2
 	github.com/kardianos/service v1.2.0
-	github.com/lwch/logging v0.0.0-20210831025517-ae81047d6190
+	github.com/kisielk/errcheck v1.6.0 // indirect
+	github.com/lwch/logging v0.0.0-20211025091611-49142fc48426
 	github.com/lwch/runtime v0.0.0-20190520054850-8c97e19e0c6d
 	github.com/lwch/yaml v0.0.0-20211009070949-2d4c64e2b789
-	golang.org/x/sys v0.0.0-20211101204403-39c9dd37992c
+	github.com/shirou/gopsutil v3.21.10+incompatible // indirect
+	golang.org/x/image v0.0.0-20211028202545-6944b10bf410 // indirect
+	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
+	golang.org/x/mod v0.5.1 // indirect
+	golang.org/x/sys v0.0.0-20211102192858-4dd72447c267
 	golang.org/x/text v0.3.7
+	golang.org/x/tools v0.1.7 // indirect
 	google.golang.org/protobuf v1.27.1
 )
diff --git a/go.sum b/go.sum
index 3f40af8..1cfcc05 100644
--- a/go.sum
+++ b/go.sum
@@ -11,8 +11,9 @@ github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/go-bindata/go-bindata/v3 v3.1.3 h1:F0nVttLC3ws0ojc7p60veTurcOm//D4QBODNM7EGrCI=
 github.com/go-bindata/go-bindata/v3 v3.1.3/go.mod h1:1/zrpXsLD8YDIbhZRqXzm1Ghc7NhEvIN9+Z6R5/xH4I=
-github.com/go-ole/go-ole v1.2.5 h1:t4MGB5xEDZvXI+0rMjjsfBsD7yAgp/s9ZDkL1JndXwY=
 github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-vgo/robotgo v0.100.3 h1:nm69jC22o2E7ixfMfoSuBWQN4GM+D/GbxG+Wzt1HvBo=
 github.com/go-vgo/robotgo v0.100.3/go.mod h1:GCjwxRFoUkuekzm02WexYBV0paDLCbrrlKEfxt/CB10=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
@@ -22,10 +23,11 @@ github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0U
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/kardianos/service v1.2.0 h1:bGuZ/epo3vrt8IPC7mnKQolqFeYJb7Cs8Rk4PSOBB/g=
 github.com/kardianos/service v1.2.0/go.mod h1:CIMRFEJVL+0DS1a3Nx06NaMn4Dz63Ng6O7dl0qH0zVM=
-github.com/kisielk/errcheck v1.2.0 h1:reN85Pxc5larApoH1keMBiu2GWtPqXQ1nc9gx+jOU+E=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
-github.com/lwch/logging v0.0.0-20210831025517-ae81047d6190 h1:C0Fpn2r+o13bVljlrKmpVe1LECPsFLtex5Mrt/v07H0=
-github.com/lwch/logging v0.0.0-20210831025517-ae81047d6190/go.mod h1:aXQui5bsF/d4I+z6szuiBWY5m4y9t6pyZ2Q/sLgkBBg=
+github.com/kisielk/errcheck v1.6.0 h1:YTDO4pNy7AUN/021p+JGHycQyYNIyMoenM1YDVK6RlY=
+github.com/kisielk/errcheck v1.6.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
+github.com/lwch/logging v0.0.0-20211025091611-49142fc48426 h1:z78TtxBRIK6l+i2C4i7Hg0p2edYzZtKkVLdpOOMFBvo=
+github.com/lwch/logging v0.0.0-20211025091611-49142fc48426/go.mod h1:aXQui5bsF/d4I+z6szuiBWY5m4y9t6pyZ2Q/sLgkBBg=
 github.com/lwch/runtime v0.0.0-20190520054850-8c97e19e0c6d h1:Xg+zzPtvX22DaoJD5Bp0tqPdB8gn5WypghIJ4fluqiQ=
 github.com/lwch/runtime v0.0.0-20190520054850-8c97e19e0c6d/go.mod h1:uEt0zu1MDC7WnVvodPBGSYAD/KMKk0v36xE8UE5veM8=
 github.com/lwch/yaml v0.0.0-20211009070949-2d4c64e2b789 h1:Z9jucdBfDaTXBT+jxyOw08op3DYpr9lEZJkTbVJ3bmU=
@@ -45,8 +47,9 @@ github.com/robotn/xgb v0.0.0-20190912153532-2cb92d044934 h1:2lhSR8N3T6I30q096DT7
 github.com/robotn/xgb v0.0.0-20190912153532-2cb92d044934/go.mod h1:SxQhJskUJ4rleVU44YvnrdvxQr0tKy5SRSigBrCgyyQ=
 github.com/robotn/xgbutil v0.0.0-20190912154524-c861d6f87770 h1:2uX8QRLkkxn2EpAQ6I3KhA79BkdRZfvugJUzJadiJwk=
 github.com/robotn/xgbutil v0.0.0-20190912154524-c861d6f87770/go.mod h1:svkDXUDQjUiWzLrA0OZgHc4lbOts3C+uRfP6/yjwYnU=
-github.com/shirou/gopsutil v3.21.8+incompatible h1:sh0foI8tMRlCidUJR+KzqWYWxrkuuPIGiO6Vp+KXdCU=
 github.com/shirou/gopsutil v3.21.8+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
+github.com/shirou/gopsutil v3.21.10+incompatible h1:AL2kpVykjkqeN+MFe1WcwSBVUjGjvdU8/ubvCuXAjrU=
+github.com/shirou/gopsutil v3.21.10+incompatible/go.mod h1:5b4v6he4MtMOwMlS0TUMTu2PcXUg8+E1lC7eC3UO/RA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -60,28 +63,46 @@ github.com/vcaesar/imgo v0.30.0 h1:ODQVX0EFJEh+WkKahCBtE0SqcDCIjl/kjiOplR0Ouh8=
 github.com/vcaesar/imgo v0.30.0/go.mod h1:8TGnt5hjaMgwDByvMFIzUDSh5uSea4n1tAbSvnhvA6U=
 github.com/vcaesar/tt v0.20.0 h1:9t2Ycb9RNHcP0WgQgIaRKJBB+FrRdejuaL6uWIHuoBA=
 github.com/vcaesar/tt v0.20.0/go.mod h1:GHPxQYhn+7OgKakRusH7KJ0M5MhywoeLb8Fcffs/Gtg=
+github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d h1:RNPAfi2nHY7C2srAV8A49jpsYr0ADedCk1wq6fTMTvs=
 golang.org/x/image v0.0.0-20210628002857-a66eb6448b8d/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
-golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f h1:J5lckAjkw6qYlOZNj90mLYNTEKDvWeuc1yieZ8qUzUE=
+golang.org/x/image v0.0.0-20211028202545-6944b10bf410 h1:hTftEOvwiOq2+O8k2D5/Q7COC7k5Qcrgc2TFURJYnvQ=
+golang.org/x/image v0.0.0-20211028202545-6944b10bf410/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
 golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 h1:VLliZ0d+/avPrXXH+OakdXhpJuEoBZuwh1m2j7U6Iug=
+golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
+golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.5.1 h1:OJxoQ/rynoF0dcCdI7cLPktw/hR2cueqYfjm43oqK38=
+golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20201110031124-69a78807bb2b h1:uwuIcX0g4Yl1NC5XAz37xsr2lTtcqevgzYNVt49waME=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d h1:20cMwl2fHAzkJMEA+8J4JgqBQcQGzbisXo31MIeenXI=
+golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201018230417-eeed37f84f13/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210816074244-15123e1e1f71/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210915083310-ed5796bab164/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210925032602-92d5a993a665/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20211101204403-39c9dd37992c h1:rnNohYBMnXA07uGnZ9CSWNhIu4Gob4FqWS43lLqZ2sU=
-golang.org/x/sys v0.0.0-20211101204403-39c9dd37992c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211102192858-4dd72447c267 h1:7zYaz3tjChtpayGDzu6H0hDAUM5zIGA2XW7kRNgQ0jc=
+golang.org/x/sys v0.0.0-20211102192858-4dd72447c267/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -89,11 +110,17 @@ golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20181030221726-6c7e314b6563/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f h1:kDxGY2VmgABOe55qheT/TFqUMtcTHnomIPS1iv3G4Ms=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
+golang.org/x/tools v0.1.7 h1:6j8CgantCy3yc8JGBqkDLMKWqZ0RDU2g1HVgacojGWQ=
+golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
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