diff --git a/Cargo.toml b/Cargo.toml
index 0605c3e..976ce3a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,12 +24,12 @@ panic = 'unwind'
 [dependencies]
 zip = "^0.2.1"
 encoding = "^0.2"
-duct = "^0.8.2"
 urlparse = "^0.7.3"
 requests = "^0.0.30"
 
-stderr ="^0.7.0"
-poolite ="^0.6.1"
-app = { git = "https://github.com/biluohc/app-rs", branch="master", version ="^0.5.3" }
+stderr = "^0.7.0"
+poolite = "^0.6.1"
+app = "^0.5.3"
+# app = { git = "https://github.com/biluohc/app-rs", branch="master", version ="^0.5.3" }
 # app = { path = "../app" }
 
diff --git a/readme.md b/readme.md
index e1c34fd..fb227d9 100644
--- a/readme.md
+++ b/readme.md
@@ -9,7 +9,7 @@
 
 ## Or
 ```sh
-git clone https://github.com/biluohc/zipcs --depth 1 
+git clone https://github.com/biluohc/zipcs  
 cd zipcs 
 cargo build --release
 
diff --git a/src/coll/path.rs b/src/coll/path.rs
index 09ae33f..e7a28ae 100644
--- a/src/coll/path.rs
+++ b/src/coll/path.rs
@@ -61,8 +61,8 @@ fn path_recurse(path: OsString, mut depth: i64, config: Arc<Paths>) -> Result<()
     let path_decode_result = decode(&path, &config.charset);
     if config.charset != CharSet::UTF_8 && path_decode_result.is_ok() {
         let str = path_decode_result.unwrap();
-        let noeq = noeq(&str, &path);
-        if config.store && noeq {
+        let ne = ne(&str, &path);
+        if config.store && ne {
             rename(&path, &str)
                 .map_err(|e| format!("{:?} rename fails: {}", path, e.description()))?;
             println!("{:?} -> {:?}", path, str);
@@ -111,11 +111,11 @@ fn decode(path: &OsString, cs: &CharSet) -> Result<String, Cow<'static, str>> {
 }
 
 #[cfg(unix)]
-fn noeq(str: &str, path: &OsString) -> bool {
+fn ne(str: &str, path: &OsString) -> bool {
     str.as_bytes() != path.as_bytes()
 }
 
 #[cfg(windows)]
-fn noeq(str: &str, path: &OsString) -> bool {
+fn ne(str: &str, path: &OsString) -> bool {
     str.as_bytes() != path.to_string_lossy().as_bytes()
 }
\ No newline at end of file
diff --git a/src/coll/ping.rs b/src/coll/ping.rs
old mode 100644
new mode 100755
index 4c1e94b..c4b87a5
--- a/src/coll/ping.rs
+++ b/src/coll/ping.rs
@@ -1,7 +1,11 @@
-use duct::cmd;
 use poolite::{IntoPool, Pool};
 use stderr::Loger;
 
+#[cfg(windows)]
+use super::consts::*;
+
+use std::process::Command as Cmd;
+use std::process::Output;
 use std::net::ToSocketAddrs;
 use std::error::Error;
 use std::sync::Arc;
@@ -90,33 +94,80 @@ fn ping(config: Arc<Pings>, idx: usize, host_len_max: usize) {
     // host
     args.push(host);
 
-    match cmd("ping", &args[..]).read() {
-        Ok(o) => {
-            if config.only_line {
-                printf(&o, host, host_len_max);
-            } else {
-                println!("{}\n", o);
-            }
-        }
-        Err(e) => {
-            dbstln!("{:?}", e);
-            errln!("{}", e.description());
-        }
+    let output = Cmd::new("ping")
+        .args(&args[..])
+        .output()
+        .map_err(|e| panic!("exec ping fails: {}", e.description()))
+        .unwrap();
+    if output.status.success() {
+        printf(&output, config.only_line, host, host_len_max);
+    } else {
+        printf_err(&output, host, host_len_max);
     }
 }
 
-fn printf(msg: &str, host: &str, host_len_max: usize) {
-    let vs: Vec<String> = msg.lines().map(|s| s.to_string()).collect();
+fn printf(msg: &Output, only_line: bool, host: &str, host_len_max: usize) {
+    assert!(!msg.stdout.is_empty());
+    let msg = decode(&msg.stdout[..]);
+    let msg = msg.trim();
+    // -l/--only-line
+    if !only_line {
+        println!("{}\n", msg);
+        return;
+    }
+
+    let vs: Vec<String> = msg.lines().map(|s| s.trim().to_string()).collect();
     dbstln!("{:?}", msg);
-    let space_fix = |host: &str| {
-        let mut str = host.to_owned();
-        while str.len() < host_len_max {
-            str += " ";
-        }
-        str
-    };
+
+    #[cfg(unix)]
     println!("{}:  {} -> {}",
-             space_fix(host),
+             space_fix(host, host_len_max),
              vs[vs.len() - 1],
              vs[vs.len() - 2]);
+
+    #[cfg(windows)]
+    println!("{}:  {} -> {}",
+             space_fix(host, host_len_max),
+             vs[vs.len() - 1],
+             vs[vs.len() - 3]);
+}
+
+fn printf_err(msg: &Output, host: &str, host_len_max: usize) {
+    assert!(!msg.stdout.is_empty());
+    let msg = decode(&msg.stdout[..]);
+    let vs: Vec<String> = msg.trim()
+        .lines()
+        .map(|s| s.trim().to_string())
+        .collect();
+    errln!("{}:  {}", space_fix(host, host_len_max), vs[vs.len() - 1]);
+}
+
+fn space_fix(msg: &str, host_len_max: usize) -> String {
+    let mut str = msg.to_owned();
+    while str.len() < host_len_max {
+        str += " ";
+    }
+    str
+}
+
+#[cfg(unix)]
+fn decode(msg: &[u8]) -> String {
+    String::from_utf8_lossy(msg).into_owned().to_owned()
+}
+
+#[cfg(windows)]
+fn decode(msg: &[u8]) -> String {
+    let result = CharSet::GB18030.decode(msg);
+    if result.is_ok() {
+        return result.unwrap();
+    }
+    let result = CharSet::BIG5_2003.decode(msg);
+    if result.is_ok() {
+        return result.unwrap();
+    }
+    let result = CharSet::HZ.decode(msg);
+    if result.is_ok() {
+        return result.unwrap();
+    }
+    String::from_utf8_lossy(msg).into_owned().to_owned()
 }
diff --git a/src/main.rs b/src/main.rs
index 51b8c29..a0d3baf 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,13 +1,13 @@
-extern crate duct;
+extern crate encoding;
+extern crate urlparse;
+extern crate requests;
+extern crate zip;
+
 extern crate app;
+extern crate poolite;
 #[macro_use]
 extern crate stderr;
 use stderr::Loger;
-extern crate poolite;
-extern crate encoding;
-extern crate zip;
-extern crate urlparse;
-extern crate requests;
 
 mod coll;
 mod consts;