Microsoft® Windows® Scripting with WMI: Self-Paced Learning Guide

8 Part I: Getting Started with WMI

What Is a Return Code?

When a method is called in WMI, it returns with a number called a return code that is

equal to the result of the method, For instance, a return code of 0 means the operation

was successful. (Table 1-1 lists other return codes that come back if the operation is not

successful.) I think of this in baseball terms: “no runs, no hits, no errors”—a perfect

inning for a pitcher. The pitcher made no mistakes during that part of the game. The

whole concept of a return code is to provide feedback on an operation. Imagine, for a

moment, that you are an officer in the Navy and you tell an enl