diff --git a/pyfpdb/Configuration.py b/pyfpdb/Configuration.py
index ec4c621e..c3c93293 100755
--- a/pyfpdb/Configuration.py
+++ b/pyfpdb/Configuration.py
@@ -166,6 +166,10 @@ if LOCALE_ENCODING == "US-ASCII":
 
 
 # needs LOCALE_ENCODING (above), imported for sqlite setup in Config class below
+
+FROZEN = hasattr(sys, "frozen")
+EXEC_PATH = get_exec_path()
+
 import Charset
 
 
@@ -613,7 +617,11 @@ class Config:
     def save(self, file = None):
         if file is None:
             file = self.file
-        shutil.move(file, file+".backup")
+            try:
+                shutil.move(file, file+".backup")
+            except:
+                pass
+
         with open(file, 'w') as f:
             self.doc.writexml(f)
 
@@ -1030,3 +1038,9 @@ if __name__== "__main__":
             PrettyPrint(site_node, stream=sys.stdout, encoding="utf-8")
     except:
         print "xml.dom.ext needs PyXML to be installed!"
+
+    print "FROZEN =", FROZEN
+    print "EXEC_PATH =", EXEC_PATH
+
+    print "press enter to end"
+    sys.stdin.readline()