diff --git a/packages/addons/service/downloadmanager/transmission/changelog.txt b/packages/addons/service/downloadmanager/transmission/changelog.txt
index d2419300c6..60cc3e3695 100644
--- a/packages/addons/service/downloadmanager/transmission/changelog.txt
+++ b/packages/addons/service/downloadmanager/transmission/changelog.txt
@@ -1,3 +1,6 @@
+2.0.4
+- update to transmission-2.50
+
 2.0.3
 - rebuild for libiconv changes
 
diff --git a/packages/addons/service/downloadmanager/transmission/meta b/packages/addons/service/downloadmanager/transmission/meta
index 1b1975c57b..802289041c 100644
--- a/packages/addons/service/downloadmanager/transmission/meta
+++ b/packages/addons/service/downloadmanager/transmission/meta
@@ -19,8 +19,8 @@
 ################################################################################
 
 PKG_NAME="transmission"
-PKG_VERSION="2.42"
-PKG_REV="3"
+PKG_VERSION="2.50"
+PKG_REV="4"
 PKG_ARCH="any"
 PKG_LICENSE="OSS"
 PKG_SITE="http://www.transmissionbt.com/"
diff --git a/packages/addons/service/downloadmanager/transmission/patches/transmission-2.42-utp.patch b/packages/addons/service/downloadmanager/transmission/patches/transmission-2.42-utp.patch
deleted file mode 100644
index 1978f7af18..0000000000
--- a/packages/addons/service/downloadmanager/transmission/patches/transmission-2.42-utp.patch
+++ /dev/null
@@ -1,14 +0,0 @@
---- a/third-party/libutp/utypes.h.orig	Wed Sep 28 19:46:15 2011
-+++ b/third-party/libutp/utypes.h	Wed Sep 28 19:47:06 2011
-@@ -36,7 +36,11 @@ typedef const char * cstr;
- typedef char * str;
- 
- #ifndef __cplusplus
-+#ifdef HAVE_STDBOOL_H
-+#include <stdbool.h>
-+#else
- typedef uint8 bool;
-+#endif
- #endif
- 
- #endif //__UTYPES_H__
diff --git a/packages/addons/service/downloadmanager/transmission/source/bin/transmission.service b/packages/addons/service/downloadmanager/transmission/source/bin/transmission.start
similarity index 89%
rename from packages/addons/service/downloadmanager/transmission/source/bin/transmission.service
rename to packages/addons/service/downloadmanager/transmission/source/bin/transmission.start
index c8893fd38e..a3c803818a 100755
--- a/packages/addons/service/downloadmanager/transmission/source/bin/transmission.service
+++ b/packages/addons/service/downloadmanager/transmission/source/bin/transmission.start
@@ -26,6 +26,9 @@ ADDON_DIR="$HOME/.xbmc/addons/service.downloadmanager.transmission"
 ADDON_HOME="$HOME/.xbmc/userdata/addon_data/service.downloadmanager.transmission"
 LOG_FILE="$ADDON_HOME/service.log"
 
+LOCKDIR="/var/lock/"
+LOCKFILE="transmission.disabled"
+
 export TRANSMISSION_WEB_HOME="$ADDON_DIR/web"
 
 mkdir -p $ADDON_HOME
@@ -65,7 +68,14 @@ else
 fi
 
 if [ ! "$(pidof transmission-daemon)" ];then
-  chmod +x $ADDON_DIR/lib/*
-
-  LD_LIBRARY_PATH="$ADDON_DIR/lib:$LD_LIBRARY_PATH" transmission-daemon $TRANSMISSION_ARG &>$LOG_FILE
+  if [ -f "$LOCKDIR/$LOCKFILE" ] ; then
+    rm -rf "$LOCKDIR/$LOCKFILE"
+  fi
+  while [ true ] ; do
+    if [ -f "$LOCKDIR/$LOCKFILE" ] ; then
+      break
+    fi
+    LD_LIBRARY_PATH="$ADDON_DIR/lib:$LD_LIBRARY_PATH" transmission-daemon -f $TRANSMISSION_ARG &>$LOG_FILE
+    sleep 1
+  done &
 fi
diff --git a/packages/addons/service/downloadmanager/transmission/source/bin/transmission.stop b/packages/addons/service/downloadmanager/transmission/source/bin/transmission.stop
new file mode 100755
index 0000000000..0bded7b9b3
--- /dev/null
+++ b/packages/addons/service/downloadmanager/transmission/source/bin/transmission.stop
@@ -0,0 +1,32 @@
+#!/bin/sh
+
+################################################################################
+#      This file is part of OpenELEC - http://www.openelec.tv
+#      Copyright (C) 2009-2012 Stephan Raue (stephan@openelec.tv)
+#
+#  This Program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2, or (at your option)
+#  any later version.
+#
+#  This Program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with OpenELEC.tv; see the file COPYING.  If not, write to
+#  the Free Software Foundation, 51 Franklin Street, Suite 500, Boston, MA 02110, USA.
+#  http://www.gnu.org/copyleft/gpl.html
+################################################################################
+
+. /etc/profile
+
+LOCKDIR="/var/lock/"
+LOCKFILE="transmission.disabled"
+
+if [ "$(pidof transmission-daemon)" ];then
+  mkdir -p "$LOCKDIR"
+  touch "$LOCKDIR/$LOCKFILE"
+  killall -9 transmission-daemon
+fi
diff --git a/packages/addons/service/downloadmanager/transmission/source/default.py b/packages/addons/service/downloadmanager/transmission/source/default.py
index 053d217ef5..25e184d622 100644
--- a/packages/addons/service/downloadmanager/transmission/source/default.py
+++ b/packages/addons/service/downloadmanager/transmission/source/default.py
@@ -21,12 +21,24 @@
 import os
 import sys
 import xbmcaddon
+import time
+import subprocess
 
 __scriptname__ = "Transmission BT Client"
 __author__ = "OpenELEC"
 __url__ = "http://www.openelec.tv"
 __settings__   = xbmcaddon.Addon(id='service.downloadmanager.transmission')
 __cwd__        = __settings__.getAddonInfo('path')
-__path__       = xbmc.translatePath( os.path.join( __cwd__, 'bin', "transmission.service") )
+__start__      = xbmc.translatePath( os.path.join( __cwd__, 'bin', "transmission.start") )
+__stop__       = xbmc.translatePath( os.path.join( __cwd__, 'bin', "transmission.stop") )
+
+#make binary files executable in adson bin folder
+subprocess.Popen("chmod -R +x " + __cwd__ + "/bin/*" , shell=True, close_fds=True)
+
+subprocess.Popen(__start__, shell=True, close_fds=True)
+
+while (not xbmc.abortRequested):
+  time.sleep(0.250)
+
+subprocess.Popen(__stop__, shell=True, close_fds=True)
 
-os.system(__path__)