Python windows service "Error starting service: The service did not respond to the start or control request in a timely fashion"

I know this is old but I was stuck on this forever. For me, this specific problem was solved by copying this file - pywintypes36.dll

From -> Python36\Lib\site-packages\pywin32_system32

To -> Python36\Lib\site-packages\win32

It's possible that your service is not starting because it's unable to find the executable. I had a similar issue that was solved by adding some pywin32 related directories to my system path. You can do this using setx:

setx /M PATH "%PATH%;C:\Python27;C:\Python27\Scripts;C:\Python27\Lib\site-packages\pywin32_system32;C:\Python27\Lib\site-packages\win32"

Try running this in a cmd window with admin privileges and adjust the paths to match your own python installation.

Finally, the solution for this.

First step:

USE pyinstaller to create a standalone executable file, i.e.:

  pip install pyinstaller  pyinstaller yourproject.py  cd dist\yourproject  yourproject.exe install

Second step:

Note that. When the Windows Service calls "your program", it gives a time to answer according the Service Development Protocol. All of the codes above, are not starting the service. Please, change your code as below:

if __name__ == '__main__':   if len(sys.argv) > 1:       # Called by Windows shell. Handling arguments such as: Install, Remove, etc.       win32serviceutil.HandleCommandLine(JobManager)   else:       # Called by Windows Service. Initialize the service to communicate with the system operator       servicemanager.Initialize()       servicemanager.PrepareToHostSingle(JobManager)       servicemanager.StartServiceCtrlDispatcher()