diff -r 058bb3dc685f -r 0b59724cb3f2 cubicweb/etwist/service.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/etwist/service.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,99 @@
+# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
+#
+# This file is part of CubicWeb.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+from __future__ import print_function
+
+import os
+import sys
+
+try:
+    import win32serviceutil
+    import win32service
+except ImportError:
+    print('Win32 extensions for Python are likely not installed.')
+    sys.exit(3)
+
+from os.path import join
+
+from cubicweb.etwist.server import (CubicWebRootResource, reactor, server)
+
+from logilab.common.shellutils import rm
+
+import logging
+from logging import getLogger, handlers
+from cubicweb import set_log_methods
+from cubicweb.cwconfig import CubicWebConfiguration as cwcfg
+
+def _check_env(env):
+    env_vars = ('CW_INSTANCES_DIR', 'CW_INSTANCES_DATA_DIR', 'CW_RUNTIME_DIR')
+    for var in env_vars:
+        if var not in env:
+            raise Exception('The environment variables %s must be set.' % \
+                            ', '.join(env_vars))
+    if not env.get('USERNAME'):
+        env['USERNAME'] = 'cubicweb'
+
+class CWService(object, win32serviceutil.ServiceFramework):
+    _svc_name_ = None
+    _svc_display_name_ = None
+    instance = None
+
+    def __init__(self, *args, **kwargs):
+        win32serviceutil.ServiceFramework.__init__(self, *args, **kwargs)
+        cwcfg.load_cwctl_plugins()
+        logger = getLogger('cubicweb')
+        set_log_methods(CubicWebRootResource, logger)
+
+    def SvcStop(self):
+        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
+        logger = getLogger('cubicweb.twisted')
+        logger.info('stopping %s service' % self.instance)
+        reactor.stop()
+        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
+
+    def SvcDoRun(self):
+        self.ReportServiceStatus(win32service.SERVICE_START_PENDING)
+        logger = getLogger('cubicweb.twisted')
+        handler = handlers.NTEventLogHandler('cubicweb')
+        handler.setLevel(logging.INFO)
+        logger.addHandler(handler)
+        logger.info('starting %s service' % self.instance)
+        try:
+            _check_env(os.environ)
+            # create the site
+            config = cwcfg.config_for(self.instance)
+            config.init_log(force=True)
+            config.debugmode = False
+            logger.info('starting cubicweb instance %s ', self.instance)
+            config.info('clear ui caches')
+            for cachedir in ('uicache', 'uicachehttps'):
+                rm(join(config.appdatahome, cachedir, '*'))
+            root_resource = CubicWebRootResource(config, config.repository())
+            website = server.Site(root_resource)
+            # serve it via standard HTTP on port set in the configuration
+            port = config['port'] or 8080
+            logger.info('listening on port %s' % port)
+            reactor.listenTCP(port, website)
+            root_resource.init_publisher()
+            root_resource.start_service()
+            logger.info('instance started on %s', root_resource.base_url)
+            self.ReportServiceStatus(win32service.SERVICE_RUNNING)
+            reactor.run()
+        except Exception as e:
+            logger.error('service %s stopped (cause: %s)' % (self.instance, e))
+            logger.exception('what happened ...')
+        self.ReportServiceStatus(win32service.SERVICE_STOPPED)