diff --git a/README.md b/README.md
index 8893f74b..2e7c6159 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ NVM for Windows is a command line tool. Simply type `nvm` in the console for hel
 - `nvm use <version> [arch]`: Switch to use the specified version. Optionally specify 32/64bit architecture. `nvm use <arch>` will continue using the selected version, but switch to 32/64 bit mode based on the value supplied to `<arch>`.
 - `nvm root <path>`: Set the directory where nvm should store different versions of node.js. If `<path>` is not set, the current root will be displayed.
 - `nvm version`: Displays the current running version of NVM for Windows.
+- `nvm node_mirror <node_mirror_url>`: Set the node mirror.People in China can use *https://npm.taobao.org/mirrors/node/*
+- `nvm npm_mirror <npm_mirror_url>`: Set the npm mirror.People in China can use *https://npm.taobao.org/mirrors/npm/*
 
 ### Gotcha!
 
diff --git a/nvm.iss b/nvm.iss
index 40d4642b..541d089c 100644
--- a/nvm.iss
+++ b/nvm.iss
@@ -6,7 +6,7 @@
 #define MyAppURL "http://github.com/coreybutler/nvm"
 #define MyAppExeName "nvm.exe"
 #define MyIcon "bin\nodejs.ico"
-#define ProjectRoot "C:\Users\Corey\Documents\workspace\nvm-windows"
+#define ProjectRoot "."
 
 [Setup]
 ; NOTE: The value of AppId uniquely identifies this application.
diff --git a/src/nvm.go b/src/nvm.go
index cb0a4ccd..5914a369 100644
--- a/src/nvm.go
+++ b/src/nvm.go
@@ -108,10 +108,22 @@ func main() {
         saveSettings()
       }
     case "update": update()
+    case "node_mirror": setNodeMirror(detail)
+    case "npm_mirror": setNpmMirror(detail)
     default: help()
   }
 }
 
+func setNodeMirror(detail string) {
+	env.node_mirror = detail
+	saveSettings()
+}
+
+func setNpmMirror(detail string) {
+	env.npm_mirror = detail
+	saveSettings()
+}
+
 func update() {
 //  cmd := exec.Command("cmd", "/d", "echo", "testing")
 //  var output bytes.Buffer
@@ -574,8 +586,8 @@ func updateRootDir(path string) {
 }
 
 func saveSettings() {
-  content := "root: "+strings.Trim(env.root," \n\r")+"\r\narch: "+strings.Trim(env.arch," \n\r")+"\r\nproxy: "+strings.Trim(env.proxy," \n\r")+"\r\noriginalpath: "+strings.Trim(env.originalpath," \n\r")+"\r\noriginalversion: "+strings.Trim(env.originalversion," \n\r")
-  content = content + "node_mirror: "+strings.Trim(env.node_mirror," \n\r")+ "npm_mirror: "+strings.Trim(env.npm_mirror," \n\r")
+	content := "root: " + strings.Trim(env.root, " \n\r") + "\r\narch: " + strings.Trim(env.arch, " \n\r") + "\r\nproxy: " + strings.Trim(env.proxy, " \n\r") + "\r\noriginalpath: " + strings.Trim(env.originalpath, " \n\r") + "\r\noriginalversion: " + strings.Trim(env.originalversion, " \n\r")
+	content = content + "\r\nnode_mirror: " + strings.Trim(env.node_mirror, " \n\r") + "\r\nnpm_mirror: " + strings.Trim(env.npm_mirror, " \n\r")
   ioutil.WriteFile(env.settings, []byte(content), 0644)
 }
 
diff --git a/src/nvm/web/web.go b/src/nvm/web/web.go
index 84df4fc2..f9439ce9 100644
--- a/src/nvm/web/web.go
+++ b/src/nvm/web/web.go
@@ -5,10 +5,12 @@ import(
   "net/http"
   "net/url"
   "os"
+  "os/signal"
   "io"
   "io/ioutil"
+	"strings"
+	"syscall"
   "crypto/tls"
-  "strings"
   "strconv"
   "../arch"
   "../file"
@@ -50,7 +52,7 @@ func  GetFullNpmUrl(path string) string{
   return npmBaseAddress + path;
 }
 
-func Download(url string, target string) bool {
+func Download(url string, target string, version string) bool {
 
   output, err := os.Create(target)
   if err != nil {
@@ -63,12 +65,28 @@ func Download(url string, target string) bool {
     fmt.Println("Error while downloading", url, "-", err)
   }
   defer response.Body.Close()
-
+  c := make(chan os.Signal, 2)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		<-c
+		fmt.Println("Download interrupted.Rolling back...")
+		output.Close()
+		response.Body.Close()
+		var err error
+		if strings.Contains(target, "node") {
+			err = os.RemoveAll(os.Getenv("NVM_HOME") + "\\v" + version)
+		} else {
+			err = os.Remove(target)
+		}
+		if err != nil {
+			fmt.Println("Error while rolling back", err)
+		}
+		os.Exit(1)
+	}()
   _, err = io.Copy(output, response.Body)
   if err != nil {
     fmt.Println("Error while downloading", url, "-", err)
   }
-
   if response.Status[0:3] != "200" {
     fmt.Println("Download failed. Rolling Back.")
     err := os.Remove(target)
@@ -111,9 +129,9 @@ func GetNodeJS(root string, v string, a string) bool {
   } else {
    fileName := root+"\\v"+v+"\\node"+a+".exe"
 
-    fmt.Printf("Downloading node.js version "+v+" ("+a+"-bit)... ")
+    fmt.Println("Downloading node.js version "+v+" ("+a+"-bit)... ")
 
-    if Download(url,fileName) {
+    if Download(url,fileName,v) {
       fmt.Printf("Complete\n")
       return true
     } else {
@@ -142,7 +160,7 @@ func GetNpm(root string, v string) bool {
   fileName := tempDir+"\\"+"npm-v"+v+".zip"
 
   fmt.Printf("Downloading npm version "+v+"... ")
-  if Download(url,fileName) {
+  if Download(url,fileName,v) {
     fmt.Printf("Complete\n")
     return true
   } else {