diff -r 7dd49b65208b -r d0b1ffcb9368 Beremiz_service.py
--- a/Beremiz_service.py	Mon Jan 29 12:56:49 2018 +0100
+++ b/Beremiz_service.py	Mon Jan 29 13:31:14 2018 +0100
@@ -110,7 +110,9 @@
     elif o == "-s":
         wampsecret = None if a == "off" else a
     elif o == "-e":
-        extensions.append(a)
+        l = list(os.path.split(os.path.realpath(a)))
+        l.reverse()
+        extensions.append(l)
     else:
         usage()
         sys.exit()
@@ -536,12 +538,18 @@
 # Exception hooks s
 
 
+
+def LogMessageAndException(msg, exp=None):
+    if exp is None:
+        exp = sys.exc_info()
+    if pyroserver.plcobj is not None:
+        pyroserver.plcobj.LogMessage(0, msg + '\n'.join(traceback.format_exception(*exp)))
+    else:
+        print(msg)
+        traceback.print_exception(*exp)
+
 def LogException(*exp):
-    if pyroserver.plcobj is not None:
-        pyroserver.plcobj.LogMessage(0, '\n'.join(traceback.format_exception(*exp)))
-    else:
-        traceback.print_exception(*exp)
-
+    LogExceptionAndMessage("",exp)
 
 sys.excepthook = LogException
 
@@ -588,10 +596,9 @@
             wampconf = None
 
 # Load extensions
-for extfilename in extensions:
-    extension_folder = os.path.split(os.path.realpath(extfilename))[0]
+for extention_file, extension_folder in extensions:
     sys.path.append(extension_folder)
-    execfile(extfilename, locals())
+    execfile(os.path.join(extension_folder, extention_file), locals())
 
 if havetwisted:
     if webport is not None:
@@ -599,8 +606,8 @@
             website = NS.RegisterWebsite(webport)
             pyruntimevars["website"] = website
             statuschange.append(NS.website_statuslistener_factory(website))
-        except Exception, e:
-            print(_("Nevow Web service failed. "), e)
+        except Exception:
+            LogMessageAndException(_("Nevow Web service failed. "))
 
     if wampconf is not None:
         try:
@@ -611,11 +618,11 @@
                     pyruntimevars["wampsession"] = WC.GetSession
                     WC.SetServer(pyroserver)
                 else:
-                    print(_("WAMP config is incomplete."))
+                    raise Exception(_("WAMP config is incomplete."))
             else:
-                print(_("WAMP config is missing."))
-        except Exception, e:
-            print(_("WAMP client startup failed. "), e)
+                raise Exception(_("WAMP config is missing."))
+        except Exception:
+            LogMessageAndException(_("WAMP client startup failed. "))
 
 
 if havetwisted or havewx:
@@ -629,7 +636,7 @@
 else:
     try:
         pyroserver.Loop()
-    except KeyboardInterrupt, e:
+    except KeyboardInterrupt:
         pass
 pyroserver.Quit()
 sys.exit(0)