diff --git a/windows/alpc.py b/windows/alpc.py
index 65dcb07..ddc48cf 100644
--- a/windows/alpc.py
+++ b/windows/alpc.py
@@ -437,6 +437,8 @@ class AlpcClient(AlpcTransportBase):
     def disconnect(self):
         if self.handle:
             self._close_port(self.handle)
+            self.handle = None
+
 
     def __del__(self):
         if sys.path is not None:
@@ -531,8 +533,10 @@ class AlpcServer(AlpcTransportBase):
     def disconnect(self):
         if self.handle:
             self._close_port(self.handle)
+            self.handle = None
         for com_port_handle in self.communication_port_list:
             self._close_port(com_port_handle)
+            del self.communication_port_list[:]
 
     # TODO: add an API to close a communication port ?
 
diff --git a/windows/rpc/stubborn.py b/windows/rpc/stubborn.py
index fff1ac5..550240a 100644
--- a/windows/rpc/stubborn.py
+++ b/windows/rpc/stubborn.py
@@ -60,13 +60,13 @@ def stubborn_create_instance(clsid, iid):
 
     resolver_info = rpiv_infoptr[0]
     if resolver_info.OxidInfo.containerVersion.version > 3:
-        print("resolver_info.OxidInfo.containerVersion.version == {0}".format(resolver_info.OxidInfo.containerVersion.version))
+        # print("resolver_info.OxidInfo.containerVersion.version == {0}".format(resolver_info.OxidInfo.containerVersion.version))
         print("Probable bad structure ! -> cast to legacy !")
         resolver_info = ctypes.cast(rpiv_infoptr, gdef.PPRIV_RESOLVER_INFO_LEGACY)[0]
 
-    print("")
+    # print("")
     psa = resolver_info.OxidInfo.psa[0] # Retrieve the bidings to our COM server
-    print("psa.bidings: {0}".format(psa.bidings))
+    # print("psa.bidings: {0}".format(psa.bidings))
     # ipidRemUnknown = resolver_info.OxidInfo.ipidRemUnknown # Useful for IRemQueryInterface
 
     # Retrieve info about the IPID from GetMarshalledResults