utility program
utility ***
service program

The operating system and its fundamental utility programs are too important to contain serious bugs.

And it includes all of the handy little utility programs.

It is better to use a utility program to clean the disk.

But the utility programs were not always easy to use.

Users of those systems must seek out a separate utility program.

In particular, we can throw out our independent shell and utility programs.

Other utility programs that try to do too much with source code may turn into codewalkers.

A. A number of utility programs on the market will help you with this problem.

There are also a number of utility programs that take some experimentation to get used to.

The utility programs have made it easier for users to create, and distribute resources.