Duplicate help files for built-in modules

This topic contains 1 reply, has 2 voices, and was last updated by  Don Jones 3 months, 1 week ago.

  • Author
  • #74500

    John Steele

    When running Get-Help against the about_ HelpFile for the following three modules it returns duplicates and doesn't run the help:

    Here is an example with about_CimSession:

    PS G:\Powershell> Get-Help about_CimSession
    Name                              Category  Module                    Synopsis
    ----                              --------  ------                    --------
    about_CimSession                  HelpFile                            Describes a CimSession object and the difference between...
    about_CimSession                  HelpFile                            Describes a CimSession object and the difference between...

    I set up the following variables to see which help files are being duplicated:

    $sys32Help = Get-ChildItem -Path "C:\Windows\System32\WindowsPowerShell\v1.0\en-US\" -Filter {*help*}
    $sys32ModHelp = Get-ChildItem -Path "C:\Windows\System32\WindowsPowerShell\v1.0\Modules" -Filter {*help*} -Recurse -File
    $compare = Compare-Object -ReferenceObject $sys32Help -DifferenceObject $sys32ModHelp -Property name -IncludeEqual
    $compEQ = $compare | where sideIndicator -eq ==

    The output of $compEQ on my computer:

    PS G:\Powershell> $compEQ
    name                                          SideIndicator
    ----                                          -------------
    about_CimSession.help.txt                     ==
    about_Scheduled_Jobs.help.txt                 ==
    about_Scheduled_Jobs_Advanced.help.txt        ==
    about_Scheduled_Jobs_Basics.help.txt          ==
    about_Scheduled_Jobs_Troubleshooting.help.txt ==
    about_ActivityCommonParameters.help.txt       ==
    about_Checkpoint-Workflow.help.txt            ==
    about_ForEach-Parallel.help.txt               ==
    about_InlineScript.help.txt                   ==
    about_Parallel.help.txt                       ==
    about_Sequence.help.txt                       ==
    about_Suspend-Workflow.help.txt               ==
    about_WorkflowCommonParameters.help.txt       ==
    about_Workflows.help.txt                      ==

    To test I did change the about_CimSession.help.txt files to about_CimSession.help.txt.old in the modules directory from above.
    I was able to successfully run 'Get-Help about_CimSession' after that.

    Which help files can I safely delete, if any?

    Is there a reason why just these modules' help files would be duplicated?

  • #74513

    Don Jones

    I've not run into that, personally. It should be safe to delete them all, and run Update-Help to reload them from source.

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