Msconfig.exe
No, Unix is an operating system program. A utility program cannot run by itself; it runs under an operating system.
System Configuration Utility:Use the System Configuration Utility to configure your system to enable optimal troubleshooting and diagnosis of technical issues. Use the System Configuration Utility to:Configure startup preferencesConfigure system componentsView and customize Windows setup componentsCustomize Bootup configurationTurn services on or offEnable and disable startup utilities and programs
System Configuration Utility (MSCONFIG)
Antiviruse programs actually count as both an application and a utility program. It counts as a utility program as it performs a routine task when executed to help maintain system stability and analyzes, configures and optimizes system performance.
CompTIA A+ Guide to Managing and Maintaining Your PC, pg #813Similar to the way Safe Mode works, the System Configuration Utility (Msconfig.exe) reduces the startup process to its essentials.
If you mean the the system configuration utility, open the start menu and select "Run" (if you use Vista, open "All Programs"-"Accessories"-"Run"). Type in "msconfig" and press OK.
No, it's an operating system kernel.
The system information utility
The Windows System Configuration utility helps determine if a service or application being loaded into Windows is causing unexpected operating system behaviour. This utility allows services and applications to be selectively disabled. If the unexpected behaviour stops after disabling a service or application then the source of the problem is identified.
disk cleanup
utility program
Utility programs usually run in the background protecting security and other parts of the system. An antivirus application is a good example of a utility program.