Mastering Windows PowerShell Scripting - Third Edition

Escape sequences and wildcard characters

The backslash character, \, is used to escape the meaning of characters in a WMI query. This might be used to escape a wildcard character, quotes, or itself. For example, the following WMI query uses a path; each instance of \ in the path must be escaped:

Get-CimInstance Win32_Process -Filter "ExecutablePath='C:\\Windows\\Explorer.exe'" 

About Win32_Process and the Path property The Path property is added to the output from the Win32_Process class by PowerShell. While it appears in the output, the property cannot be used to define a filter, nor can Path be selected using the Property parameter of either Get-CimInstance or Get-WmiObject. Get-Member shows that it is a ScriptProperty as follows: Get-CimInstance ...