diff --git a/lib/tfw/components/process_managing_event_handler.py b/lib/tfw/components/process_managing_event_handler.py
index ec20fce..6fcc248 100644
--- a/lib/tfw/components/process_managing_event_handler.py
+++ b/lib/tfw/components/process_managing_event_handler.py
@@ -1,3 +1,5 @@
+from functools import wraps
+
 from tfw.event_handler_base import TriggerlessEventHandler
 from tfw.components.mixins import SupervisorMixin
 from tfw.networking.event_handlers.server_connector import ServerUplinkConnector
@@ -16,12 +18,23 @@ class ProcessManager(SupervisorMixin):
 
 
 class ProcessManagingEventHandler(TriggerlessEventHandler):
-    def __init__(self, key):
+    def __init__(self, key, dirmonitor=None):
         super().__init__(key)
         self.key = key
+        self.monitor = dirmonitor
         self.processmanager = ProcessManager()
         self.uplink = ServerUplinkConnector()
 
+    def _with_monitor_paused(fun):
+        @wraps(fun)
+        def wrapper(self, *args, **kwargs):
+            if self.monitor:
+                with self.monitor.pauser:
+                    return fun(self, *args, **kwargs)
+            return fun(self, *args, **kwargs)
+        return wrapper
+
+    @_with_monitor_paused
     def handle_event(self, key, data_json):
         data = data_json['data']
         self.processmanager(data['command'], data['process_name'])
diff --git a/lib/tfw/components/source_code_event_handler.py b/lib/tfw/components/source_code_event_handler.py
index 33d6e4d..19896d4 100644
--- a/lib/tfw/components/source_code_event_handler.py
+++ b/lib/tfw/components/source_code_event_handler.py
@@ -53,8 +53,12 @@ class SourceCodeEventHandler(TriggerlessEventHandler):
             'select': self.select
         }
 
-        self.monitor = DirectoryMonitor(directory)
-        self.monitor.watch()    # This runs on a separate thread
+        self._monitor = DirectoryMonitor(directory)
+        self._monitor.watch()    # This runs on a separate thread
+
+    @property
+    def monitor(self):
+        return self._monitor
 
     def read(self, data):
         try: data['content'] = self.filemanager.file_contents
@@ -67,6 +71,7 @@ class SourceCodeEventHandler(TriggerlessEventHandler):
         with self.monitor.pauser:
             try: self.filemanager.file_contents = data['content']
             except Exception: log.exception('Error writing file!')
+        del data['content']
         return data
 
     def select(self, data):
diff --git a/src/demo/event_handler_main.py b/src/demo/event_handler_main.py
index 35a8f09..dfbd5bb 100644
--- a/src/demo/event_handler_main.py
+++ b/src/demo/event_handler_main.py
@@ -7,9 +7,11 @@ from tfw.config import tfwenv
 
 
 if __name__ == '__main__':
-    eventhandlers = {SourceCodeEventHandler('webide', tfwenv.WEBIDE_WD),
-                     TerminadoEventHandler('terminado', 'terminado'),
-                     ProcessManagingEventHandler('processmanager')}
+    ide = SourceCodeEventHandler('webide', tfwenv.WEBIDE_WD)
+    terminado = TerminadoEventHandler('terminado', 'terminado')
+    processmanager = ProcessManagingEventHandler('processmanager', ide.monitor)
+
+    eventhandlers = {ide, terminado, processmanager}
     try:
         IOLoop.instance().start()
     finally: