diff --git a/src/main/scala/com/github/shadowsocks/BaseService.scala b/src/main/scala/com/github/shadowsocks/BaseService.scala
index 3709ddf7..fb78c896 100644
--- a/src/main/scala/com/github/shadowsocks/BaseService.scala
+++ b/src/main/scala/com/github/shadowsocks/BaseService.scala
@@ -112,7 +112,7 @@ trait BaseService extends Service {
 
     startService(new Intent(getContext, getClass))
     TrafficMonitor.reset()
-    trafficMonitorThread = new TrafficMonitorThread()
+    trafficMonitorThread = new TrafficMonitorThread(getApplicationContext)
     trafficMonitorThread.start()
   }
 
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksApplication.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksApplication.scala
index 5afb5937..2c0a7225 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksApplication.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksApplication.scala
@@ -60,7 +60,6 @@ object ShadowsocksApplication {
   lazy val tracker = GoogleAnalytics.getInstance(instance).newTracker(R.xml.tracker)
   lazy val settings = PreferenceManager.getDefaultSharedPreferences(instance)
   lazy val profileManager = new ProfileManager(settings, dbHelper)
-  lazy val dataDir = instance.getApplicationInfo().dataDir
 
   def isVpnEnabled = !settings.getBoolean(Key.isNAT, false)
 
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
index 1cd14db3..7cfa55df 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksNatService.scala
@@ -168,7 +168,7 @@ class ShadowsocksNatService extends BaseService {
         case Route.BYPASS_LAN => getResources.getStringArray(R.array.private_route)
         case Route.BYPASS_CHN => getResources.getStringArray(R.array.chn_route_full)
       }
-      ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/acl.list"))(p => {
+      ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/acl.list"))(p => {
         acl.foreach(item => p.println(item))
       })
     }
@@ -176,21 +176,22 @@ class ShadowsocksNatService extends BaseService {
     val conf = ConfigUtils
       .SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, config.localPort,
         config.sitekey, config.encMethod, 600)
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/ss-local-nat.conf"))(p => {
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/ss-local-nat.conf"))(p => {
       p.println(conf)
     })
 
     val cmd = new ArrayBuffer[String]
-    cmd += (getApplicationInfo().dataDir + "/ss-local"
+    cmd += (getApplicationInfo.dataDir + "/ss-local"
           , "-b" , "127.0.0.1"
           , "-t" , "600"
-          , "-c" , getApplicationInfo().dataDir + "/ss-local-nat.conf")
+          , "-P", getApplicationInfo.dataDir
+          , "-c" , getApplicationInfo.dataDir + "/ss-local-nat.conf")
 
     if (config.isAuth) cmd += "-A"
 
     if (config.route != Route.ALL) {
       cmd += "--acl"
-      cmd += (getApplicationInfo().dataDir + "/acl.list")
+      cmd += (getApplicationInfo.dataDir + "/acl.list")
     }
 
     if (BuildConfig.DEBUG) Log.d(TAG, cmd.mkString(" "))
@@ -205,16 +206,17 @@ class ShadowsocksNatService extends BaseService {
       val conf = ConfigUtils
         .SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, 8153,
           config.sitekey, config.encMethod, 10)
-      ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/ss-tunnel-nat.conf"))(p => {
+      ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/ss-tunnel-nat.conf"))(p => {
         p.println(conf)
       })
       val cmd = new ArrayBuffer[String]
-      cmd += (getApplicationInfo().dataDir + "/ss-tunnel"
+      cmd += (getApplicationInfo.dataDir + "/ss-tunnel"
         , "-u"
         , "-t" , "10"
         , "-b" , "127.0.0.1"
         , "-L" , "8.8.8.8:53"
-        , "-c" , getApplicationInfo().dataDir + "/ss-tunnel-nat.conf")
+        , "-P" , getApplicationInfo.dataDir
+        , "-c" , getApplicationInfo.dataDir + "/ss-tunnel-nat.conf")
 
       cmd += ("-l" , "8153")
 
@@ -231,17 +233,18 @@ class ShadowsocksNatService extends BaseService {
       val conf = ConfigUtils
         .SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, 8163,
           config.sitekey, config.encMethod, 10)
-      ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/ss-tunnel-nat.conf"))(p => {
+      ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/ss-tunnel-nat.conf"))(p => {
         p.println(conf)
       })
       val cmdBuf = new ArrayBuffer[String]
-      cmdBuf += (getApplicationInfo().dataDir + "/ss-tunnel"
+      cmdBuf += (getApplicationInfo.dataDir + "/ss-tunnel"
         , "-u"
         , "-t" , "10"
         , "-b" , "127.0.0.1"
         , "-l" , "8163"
         , "-L" , "8.8.8.8:53"
-        , "-c" , getApplicationInfo().dataDir + "/ss-tunnel-nat.conf")
+        , "-P", getApplicationInfo.dataDir
+        , "-c" , getApplicationInfo.dataDir + "/ss-tunnel-nat.conf")
 
       if (config.isAuth) cmdBuf += "-A"
 
@@ -259,17 +262,17 @@ class ShadowsocksNatService extends BaseService {
     val conf = if (config.route == Route.BYPASS_CHN) {
       val reject = ConfigUtils.getRejectList(getContext)
       val blackList = ConfigUtils.getBlackList(getContext)
-      ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, "127.0.0.1", 8153,
-        reject, blackList, 8163, "")
+      ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
+        "127.0.0.1", 8153, reject, blackList, 8163, "")
     } else {
-      ConfigUtils.PDNSD_LOCAL.formatLocal(Locale.ENGLISH, "127.0.0.1", 8153,
-        8163, "")
+      ConfigUtils.PDNSD_LOCAL.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
+        "127.0.0.1", 8153, 8163, "")
     }
 
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/pdnsd-nat.conf"))(p => {
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/pdnsd-nat.conf"))(p => {
        p.println(conf)
     })
-    val cmd = getApplicationInfo().dataDir + "/pdnsd -c " + getApplicationInfo().dataDir + "/pdnsd-nat.conf"
+    val cmd = getApplicationInfo.dataDir + "/pdnsd -c " + getApplicationInfo.dataDir + "/pdnsd-nat.conf"
 
     if (BuildConfig.DEBUG) Log.d(TAG, cmd)
 
@@ -294,8 +297,8 @@ class ShadowsocksNatService extends BaseService {
   def startRedsocksDaemon() {
     val conf = ConfigUtils.REDSOCKS.formatLocal(Locale.ENGLISH, config.localPort)
     val cmd = "%s/redsocks -c %s/redsocks-nat.conf"
-      .formatLocal(Locale.ENGLISH, getApplicationInfo().dataDir, getApplicationInfo().dataDir)
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/redsocks-nat.conf"))(p => {
+      .formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir, getApplicationInfo.dataDir)
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/redsocks-nat.conf"))(p => {
       p.println(conf)
     })
 
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
index 098b18bb..382aab03 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnService.scala
@@ -261,7 +261,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
       var tries = 1
       while (tries < 5) {
         Thread.sleep(1000 * tries)
-        if (System.sendfd(fd, getApplicationInfo().dataDir + "/sock_path") != -1) {
+        if (System.sendfd(fd, getApplicationInfo.dataDir + "/sock_path") != -1) {
           return true
         }
         tries += 1
@@ -277,7 +277,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
         case Route.BYPASS_LAN => getResources.getStringArray(R.array.private_route)
         case Route.BYPASS_CHN => getResources.getStringArray(R.array.chn_route_full)
       }
-      ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/acl.list"))(p => {
+      ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/acl.list"))(p => {
         acl.foreach(item => p.println(item))
       })
     }
@@ -285,22 +285,22 @@ class ShadowsocksVpnService extends VpnService with BaseService {
     val conf = ConfigUtils
       .SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, config.localPort,
         config.sitekey, config.encMethod, 600)
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/ss-local-vpn.conf"))(p => {
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/ss-local-vpn.conf"))(p => {
       p.println(conf)
     })
 
     val cmd = new ArrayBuffer[String]
-    cmd += (getApplicationInfo().dataDir + "/ss-local", "-V", "-u"
+    cmd += (getApplicationInfo.dataDir + "/ss-local", "-V", "-u"
       , "-b", "127.0.0.1"
       , "-t", "600"
-      , "-P", ShadowsocksApplication.dataDir
-      , "-c", getApplicationInfo().dataDir + "/ss-local-vpn.conf")
+      , "-P", getApplicationInfo.dataDir
+      , "-c", getApplicationInfo.dataDir + "/ss-local-vpn.conf")
 
     if (config.isAuth) cmd += "-A"
 
     if (config.route != Route.ALL) {
       cmd += "--acl"
-      cmd += (getApplicationInfo().dataDir + "/acl.list")
+      cmd += (getApplicationInfo.dataDir + "/acl.list")
     }
 
     if (BuildConfig.DEBUG) Log.d(TAG, cmd.mkString(" "))
@@ -315,19 +315,19 @@ class ShadowsocksVpnService extends VpnService with BaseService {
     val conf = ConfigUtils
       .SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, 8163,
         config.sitekey, config.encMethod, 10)
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/ss-tunnel-vpn.conf"))(p => {
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/ss-tunnel-vpn.conf"))(p => {
       p.println(conf)
     })
     val cmd = new ArrayBuffer[String]
-    cmd += (getApplicationInfo().dataDir + "/ss-tunnel"
+    cmd += (getApplicationInfo.dataDir + "/ss-tunnel"
       , "-V"
       , "-u"
       , "-t", "10"
       , "-b", "127.0.0.1"
       , "-l", "8163"
       , "-L", "8.8.8.8:53"
-      , "-P", ShadowsocksApplication.dataDir
-      , "-c", getApplicationInfo().dataDir + "/ss-tunnel-vpn.conf")
+      , "-P", getApplicationInfo.dataDir
+      , "-c", getApplicationInfo.dataDir + "/ss-tunnel-vpn.conf")
 
     if (config.isAuth) cmd += "-A"
 
@@ -345,17 +345,17 @@ class ShadowsocksVpnService extends VpnService with BaseService {
       if (config.route == Route.BYPASS_CHN) {
         val reject = ConfigUtils.getRejectList(getContext)
         val blackList = ConfigUtils.getBlackList(getContext)
-        ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, "0.0.0.0", 8153,
-          reject, blackList, 8163, ipv6)
+        ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
+          "0.0.0.0", 8153, reject, blackList, 8163, ipv6)
       } else {
-        ConfigUtils.PDNSD_LOCAL.formatLocal(Locale.ENGLISH, "0.0.0.0", 8153,
-          8163, ipv6)
+        ConfigUtils.PDNSD_LOCAL.formatLocal(Locale.ENGLISH, getApplicationInfo.dataDir,
+          "0.0.0.0", 8153, 8163, ipv6)
       }
     }
-    ConfigUtils.printToFile(new File(getApplicationInfo().dataDir + "/pdnsd-vpn.conf"))(p => {
+    ConfigUtils.printToFile(new File(getApplicationInfo.dataDir + "/pdnsd-vpn.conf"))(p => {
       p.println(conf)
     })
-    val cmd = getApplicationInfo().dataDir + "/pdnsd -c " + getApplicationInfo().dataDir + "/pdnsd-vpn.conf"
+    val cmd = getApplicationInfo.dataDir + "/pdnsd -c " + getApplicationInfo.dataDir + "/pdnsd-vpn.conf"
 
     if (BuildConfig.DEBUG) Log.d(TAG, cmd)
 
@@ -430,7 +430,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
 
     val fd = conn.getFd
 
-    var cmd = (getApplicationInfo().dataDir +
+    var cmd = (getApplicationInfo.dataDir +
       "/tun2socks --netif-ipaddr %s "
       + "--netif-netmask 255.255.255.0 "
       + "--socks-server-addr 127.0.0.1:%d "
@@ -440,7 +440,7 @@ class ShadowsocksVpnService extends VpnService with BaseService {
       + "--loglevel 3")
       .formatLocal(Locale.ENGLISH,
         PRIVATE_VLAN.formatLocal(Locale.ENGLISH, "2"),
-        config.localPort, fd, VPN_MTU, getApplicationInfo().dataDir + "/sock_path")
+        config.localPort, fd, VPN_MTU, getApplicationInfo.dataDir + "/sock_path")
 
     if (config.isIpv6)
       cmd += " --netif-ip6addr " + PRIVATE_VLAN6.formatLocal(Locale.ENGLISH, "2")
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnThread.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnThread.scala
index 54328e34..fcb99498 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksVpnThread.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksVpnThread.scala
@@ -53,7 +53,7 @@ class ShadowsocksVpnThread(vpnService: ShadowsocksVpnService) extends Thread {
   import ShadowsocksVpnThread._
 
   val TAG = "ShadowsocksVpnService"
-  lazy val PATH = ShadowsocksApplication.dataDir + "/protect_path"
+  lazy val PATH = vpnService.getApplicationInfo.dataDir + "/protect_path"
 
   @volatile var isRunning: Boolean = true
   @volatile var serverSocket: LocalServerSocket = null
diff --git a/src/main/scala/com/github/shadowsocks/utils/ConfigUtils.scala b/src/main/scala/com/github/shadowsocks/utils/ConfigUtils.scala
index b118b2c6..96b9cd00 100644
--- a/src/main/scala/com/github/shadowsocks/utils/ConfigUtils.scala
+++ b/src/main/scala/com/github/shadowsocks/utils/ConfigUtils.scala
@@ -66,7 +66,7 @@ object ConfigUtils {
     """
       |global {
       | perm_cache = 2048;
-      | cache_dir = "/data/data/com.github.shadowsocks";
+      | cache_dir = "%s";
       | server_ip = %s;
       | server_port = %d;
       | query_method = tcp_only;
@@ -100,7 +100,7 @@ object ConfigUtils {
     """
       |global {
       | perm_cache = 2048;
-      | cache_dir = "/data/data/com.github.shadowsocks";
+      | cache_dir = "%s";
       | server_ip = %s;
       | server_port = %d;
       | query_method = tcp_only;
@@ -143,7 +143,7 @@ object ConfigUtils {
     """
       |global {
       | perm_cache = 2048;
-      | cache_dir = "/data/data/com.github.shadowsocks";
+      | cache_dir = "%s";
       | server_ip = %s;
       | server_port = %d;
       | query_method = tcp_only;
diff --git a/src/main/scala/com/github/shadowsocks/utils/TrafficMonitorThread.scala b/src/main/scala/com/github/shadowsocks/utils/TrafficMonitorThread.scala
index ec4b890e..d17eddb1 100644
--- a/src/main/scala/com/github/shadowsocks/utils/TrafficMonitorThread.scala
+++ b/src/main/scala/com/github/shadowsocks/utils/TrafficMonitorThread.scala
@@ -43,13 +43,14 @@ import java.io.{File, IOException}
 import java.nio.{ByteBuffer, ByteOrder}
 import java.util.concurrent.Executors
 
+import android.content.Context
 import android.net.{LocalServerSocket, LocalSocket, LocalSocketAddress}
 import android.util.Log
 
-class TrafficMonitorThread() extends Thread {
+class TrafficMonitorThread(context: Context) extends Thread {
 
   val TAG = "TrafficMonitorThread"
-  val PATH = "/data/data/com.github.shadowsocks/stat_path"
+  lazy val PATH = context.getApplicationInfo.dataDir + "/stat_path"
 
   @volatile var serverSocket: LocalServerSocket = null
   @volatile var isRunning: Boolean = true