fixed winservice, thanks Marin Prajic

gluon/winservice.py

@@ -92,7 +92,9 @@ class Web2pyService(Service):
                 _winreg.CloseKey(h)
             dir = os.path.dirname(cls)            
             os.chdir(dir)
+            from gluon.settings import global_settings
             global_settings.gluon_parent = dir
+            from gluon.custom_import import custom_import_install
             custom_import_install(dir)
             return True
         except:
@@ -151,7 +153,7 @@ class Web2pyService(Service):
 
 def web2py_windows_service_handler(argv=None, opt_file='options'):
     path = os.path.dirname(__file__)
-    web2py_path = iup(path)
+    web2py_path = up(path)
     os.chdir(web2py_path)
     classstring = os.path.normpath(
         os.path.join(web2py_path,'gluon.winservice.Web2pyService'))