Summary: Learn how to use a switch to cause Get-Help to search _About files.
How can you easily search the Windows PowerShell _About files for topics that are related to a string?
Use the Category parameter and look for HelpFiles:
PS C:\> get-help parameter -Category helpfile
Name Category Module Synopsis
---- -------- ------ --------
about_CommonParameters HelpFile Describes t...
about_Functions_Advanced_Param... HelpFile Explains ho...
about_Parameters HelpFile SHORT DESCR...
about_Parameters_Default_Values HelpFile SHORT DESCR...
