Download NSSM and read their usage page about installing.
nssm install deluged
The following are minimum UI changes required for the service to work:
Path: C:\Program Files\Deluge\deluged-debug.exe Arguments: -c C:\config_location
Note: In order for the service to be stopped properly, need to use the debug application versions.
To also run the WebUI as a service:
nssm install delugeweb
Path: C:\Program Files\Deluge\deluge-web-debug.exe Arguments: -c C:\config_location
Note: In case Web UI is not working outside your machine (if you're running Deluge from a home server), you just have to allow in your Windows Firewall the following executables in C:\Program Files\Deluge:
deluge deluge-web deluge-web-debug deluge-console
Remember to set those executables to run as Private, not Public when allowing them on Windows Firewall.
If you want to access the running deluged service with a local UI Client see: http://dev.deluge-torrent.org/wiki/UserGuide/ThinClient#AccessingdelugedservicewithlocalUIClient
Not tested, see Forum for guides.