Windows service wrapper for Python scripts, using pywin32

service.py

"""
Usage:

python service.py install
    Installs this script as a Windows service. Needs admin rights.
    
python service.py remove
    Remove service. Needs admin rights.
"""

import sys
import win32serviceutil
import win32service
import win32event
import servicemanager
import socket

# get the application hosted in this service here:
import myapp      


class AppServerSvc(win32serviceutil.ServiceFramework):
    # enter your service meta info here:
    _svc_name_ = _svc_display_name_ = "MyApp"    
    _svc_description_ = "Description of MyApp"    
    
    # configure service to start this script with the same python.exe
    _exe_name_ = sys.executable            # abspath to this python.exe
    _exe_args_ = '"{}"'.format(__file__)   # run this script in service

    def __init__(self,args):
        win32serviceutil.ServiceFramework.__init__(self,args)
        self.hWaitStop = win32event.CreateEvent(None,0,0,None)
        socket.setdefaulttimeout(60)

    def SvcStop(self):
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        win32event.SetEvent(self.hWaitStop)        
        myapp.stop_server()     # exchange with whatever stops your server

    def SvcDoRun(self):
        servicemanager.LogMsg(
            servicemanager.EVENTLOG_INFORMATION_TYPE,
            servicemanager.PYS_SERVICE_STARTED,
            (self._svc_name_,'')
        )        
        myapp.run_server()      # exchange with whatever starts your server
   
if __name__ == '__main__':
    if len(sys.argv) == 1:
        # running as service => start server
        servicemanager.Initialize()
        servicemanager.PrepareToHostSingle(AppServerSvc)
        servicemanager.StartServiceCtrlDispatcher()
    else:
        # running from cmdline => use win32's argparse
        win32serviceutil.HandleCommandLine(AppServerSvc)

This avoids missing DLL errors by using python.exe directly as the service target instead of win32's pythonservice.exe. The main thing done in the latter are basically the 3 calls against servicemanager, which were taken over here into __main__ block.