diff --git a/_demo_procMan.py b/_demo_procMan.py
index 10191ba..959ace0 100644
--- a/_demo_procMan.py
+++ b/_demo_procMan.py
@@ -13,26 +13,32 @@
 from boswatch.processManager import ProcessManager
 from boswatch.decoder.decoder import Decoder
 import logging.config
+import subprocess
 logging.config.fileConfig("config/logger_client.ini")
 
+import time
+
 sdrProc = ProcessManager("/usr/bin/rtl_fm")
 sdrProc.addArgument("-f 85M")
-sdrProc.addArgument("-m fm")
-sdrProc.start(True)
+# sdrProc.addArgument("-M fm")
+if not sdrProc.start():
+    exit(0)
+
+sdrProc.skipLines(20)
 
 mmProc = ProcessManager("/opt/multimon/multimon-ng", textMode=True)
 # mmProc.addArgument("-i")
-# mmProc.addArgument("-a POCSAG1200 -a FMSFSK -a ZVEI1")
-mmProc.addArgument("-f alpha")
-mmProc.addArgument("-t raw /dev/stdin -")
+mmProc.addArgument("-a FMSFSK -a POCSAG512 -a POCSAG1200 -a POCSAG2400")
+# mmProc.addArgument("-f alpha")
+mmProc.addArgument("-t raw -")
 mmProc.setStdin(sdrProc.stdout)
-mmProc.start(True)
-mmProc.skipLines(5)
+mmProc.start()
+# mmProc.skipLines(5)
 while 1:
     if not mmProc.isRunning:
         logging.warning("multimon was down - try to restart")
         mmProc.start()
-        mmProc.skipLines(5)
+        # mmProc.skipLines(5)
     line = mmProc.readline()
     if line:
         print(line)
diff --git a/boswatch/processManager.py b/boswatch/processManager.py
index 16b0dcf..3a164ad 100644
--- a/boswatch/processManager.py
+++ b/boswatch/processManager.py
@@ -32,6 +32,9 @@ class ProcessManager:
         self._processHandle = None
         self._textMode = textMode
 
+    def __del__(self):
+        self.stop()
+
     def addArgument(self, arg):
         """!add a new argument
 
@@ -44,7 +47,7 @@ class ProcessManager:
         """!clear all arguments"""
         self._args = self._args[0:1]  # kept first element (process name)
 
-    def start(self, startAsShell=False):
+    def start(self):
         """!start the new process
 
         @return: True or False"""
@@ -55,7 +58,7 @@ class ProcessManager:
                                                    stdout=self._stdout,
                                                    stderr=self._stderr,
                                                    universal_newlines=self._textMode,
-                                                   shell=startAsShell)
+                                                   shell=False)
             if not self.isRunning:
                 logging.error("cannot start")
                 return False