1.Applications:
Run a program that is not available as a native system service (No user session needed).
Write your own batch or script and run it securely as a system service.
Run an application as a service in order to be able to start/stop it remotely.
Run a UI application under an administrative security context (the user will not have access to the password).

2.Benefits:
Run your application securely without the need of a user session.
No modifications are required for your existing programs to work.
Integrates with Microsoft Management Console (MMC).
Optional administration through Service+.
Remote & Local administration supported.
Specify window position at startup.
Run programs which requires both interactive mode and network access at the same time.
Create Service+ views which only show ServiceMill services.
Import or export your ServiceMill services settings as an XML file.

3.Features:
Runs most executable: 16 bit (Dos, Windows, OS/2), 32 bit, batch files, scripts (VBScript, JScript) as a service.
Runs custom applications developed using: Visual Basic, Java, PowerBuilder, Delphi, etc. as a service.
Start applications at predefined interval.
Restarts applications that terminate when a user logs off.
Lets you specify the application priority (High, Normal, Idle).
Supports multiple processors (Specify processors on which the application will run).
Reports private errors to the event log.
Lets you set process-specific environment variables.
Allows to run multiple processes within the same service without ending up with orphan processes when the service is stopped.
Restore user mapped network drives when the process starts.
Specify standard input/output file redirection.
Schedule the running state of the launched application: restart the application, stop the application during backups or week-ends, etc.
Allows to raise events that let you execute custom programs at different points during the application life cycle.