--- a/connectors/PYRO/__init__.py	Mon Sep 21 12:12:08 2009 +0200
+++ b/connectors/PYRO/__init__.py	Thu Sep 24 18:22:31 2009 +0200
@@ -24,6 +24,13 @@
 from time import sleep
 import copy
 
+# this module attribute contains a list of DNS-SD (Zeroconf) service types
+# supported by this connector plugin.
+#
+# for connectors that do not support DNS-SD, this attribute can be omitted
+# or set to an empty list.
+supported_dnssd_services = ["_PYRO._tcp.local."]
+
 def PYRO_connector_factory(uri, pluginsroot):
     """
     This returns the connector to Pyro style PLCobject

--- a/connectors/USB/__init__.py	Mon Sep 21 12:12:08 2009 +0200
+++ b/connectors/USB/__init__.py	Thu Sep 24 18:22:31 2009 +0200
@@ -19,4 +19,4 @@
 #License along with this library; if not, write to the Free Software
 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-from connector_USB import *
\ No newline at end of file
+from USB_connector import *
\ No newline at end of file

--- a/connectors/__init__.py	Mon Sep 21 12:12:08 2009 +0200
+++ b/connectors/__init__.py	Thu Sep 24 18:22:31 2009 +0200
@@ -23,9 +23,28 @@
 
 from os import listdir, path
 
+import PYRO
+
 _base_path = path.split(__file__)[0]
 
-connector_types = [name for name in listdir(_base_path) if path.isdir(path.join(_base_path, name)) and name.upper() != "CVS" and not name.startswith("__")]
+connector_types = [name for name in listdir(_base_path)
+                        if path.isdir(path.join(_base_path, name))
+                            and name.upper() != "CVS"
+                            and not name.startswith("__")]
+
+# a dict from a URI scheme (connector name) to connector module
+connector_modules = {}
+
+# a dict from a DNS-SD service type to a connector module that support it
+dnssd_connectors = {}
+
+for t in connector_types:
+    new_module = getattr(__import__("connectors." + t), t)
+    connector_modules[t] = new_module
+    
+    if hasattr(new_module, "supported_dnssd_services"):
+        for st in new_module.supported_dnssd_services:
+            dnssd_connectors[st] = new_module
 
 def ConnectorFactory(uri, pluginsroot):
     """
@@ -35,16 +54,11 @@
     servicetype = uri.split("://")[0]
     if servicetype in connector_types:
         # import module according to uri type
-        connectormodule = getattr(__import__("connectors."+servicetype), servicetype)
+        connectormodule = connector_modules[servicetype]
         factoryname = servicetype + "_connector_factory"
         return getattr(connectormodule, factoryname)(uri, pluginsroot)
     elif servicetype == "LOCAL":
-        #handle incompatibility with tray icon and svgui...
-        poisoned_plugin = False
-        for PlugIn in pluginsroot.IterChilds():
-            poisoned_plugin |= PlugIn.PlugType == "svgui"
-        runtime_port = pluginsroot.AppFrame.StartLocalRuntime(taskbaricon = not poisoned_plugin)
-        import PYRO
+        runtime_port = pluginsroot.AppFrame.StartLocalRuntime(taskbaricon=True)
         return PYRO.PYRO_connector_factory(
                        "PYRO://127.0.0.1:"+str(runtime_port), 
                        pluginsroot)

--- a/discovery.py	Mon Sep 21 12:12:08 2009 +0200
+++ b/discovery.py	Thu Sep 24 18:22:31 2009 +0200
@@ -21,10 +21,12 @@
 #License along with this library; if not, write to the Free Software
 #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
+import socket
 import wx
+import  wx.lib.mixins.listctrl  as  listmix
 from Zeroconf import *
-import socket
-import  wx.lib.mixins.listctrl  as  listmix
+
+import connectors
 
 class AutoWidthListCtrl(wx.ListCtrl, listmix.ListCtrlAutoWidthMixin):
     def __init__(self, parent, id, name, pos=wx.DefaultPosition,
@@ -117,21 +119,26 @@
         self.nextItemId = 0
         
         self.URI = None
-        self.Browser = None
+        self.Browsers = []
         
         self.ZeroConfInstance = Zeroconf()
         self.RefreshList()
         
     def __del__(self):
-        self.Browser.cancel()
+        for browser in self.Browsers:
+            browser.cancel()
         self.ZeroConfInstance.close()
         
     def RefreshList(self):
-        self.Browser = ServiceBrowser(self.ZeroConfInstance, "_PYRO._tcp.local.", self)        
+        for browser in self.Browsers:
+            browser.cancel()
+        
+        self.Browsers = []
+        for t in connectors.dnssd_connectors.keys():
+            self.Browsers.append(ServiceBrowser(self.ZeroConfInstance, t, self))
 
     def OnRefreshButton(self, event):
         self.ServicesList.DeleteAllItems()
-        self.Browser.cancel()
         self.RefreshList()
 
     def OnLocalButton(self, event):