Shutter:Run as service
There is no native or easy way to make Shutter run as a service. This is because service applications are different from normal user applications (from programming point of view) and would have to be written differently. But, this doesn't mean that there cannot be any workaround. Below is a list of methods which worked for some users, but note that they are not officially supported and cannot be guaranteed to work.
Windows Resource Kit provides two utilities that allow you to create a user-defined service for Windows applications. Instrsrv.exe installs and removes system services from Windows NT and Srvany.exe allows any Windows NT application to run as a service.
Third party tools
There are 3rd party tools exist that can run any application as a service, which will be more intuitive but unfortunately not free, for example: Any2Service, FireDaemon.
Any2Service can be downloaded from here:
FireDaemon can be downloaded from here:
You must NOT allow the service to interact with the desktop. If you do allow interaction, Shutter will close after a user logs off, leaving the system running.