Set-Acl fails in V3 RRS feed

  • Question

  • I have a script that was working in V2 but fails in V3 when calling Set-Acl:

    Set-Acl : Cannot set the ACL because the method that it needs to invoke, SetSecurityDescriptor, does not exist

    Is there a different way to set file permissions in V3?

    Friday, April 26, 2013 1:49 PM


All replies

  • I just tested:

    $acl = get-acl c:\file.txt

    set-acl -path C:\file2.txt -aclobject $acl

    and it was fine. Are you doing a similar thing?

    G. Samuel Hays

    Friday, April 26, 2013 2:02 PM
  • Pretty much. Here's the snippet:

        $acl = Get-Acl $binDir
        $rights = [System.Security.AccessControl.FileSystemRights] "ReadAndExecute"
        $rightType = [System.Security.AccessControl.AccessControlType]::Allow
        $user = New-Object System.Security.Principal.NTAccount($username)
        $inheritFlags = [System.Security.AccessControl.InheritanceFlags] "ContainerInherit,ObjectInherit"
        $propagationFlags = [System.Security.AccessControl.PropagationFlags]::None
        $ace = New-Object System.Security.AccessControl.FileSystemAccessRule ($user, $rights, $inheritFlags, $propagationFlags, $rightType)
        Set-Acl $binDir $acl

    Friday, April 26, 2013 2:10 PM
  • Actually, this fails for me (my original script is also doing the work in a separate shell, and using Resolve-Path - if I eliminate either one of those the script works in V3):

    powershell -command {
      $path = "c:\temp"
      $path = Resolve-Path $path
      $acl = Get-Acl $path
      Set-Acl $path $acl

    Friday, April 26, 2013 2:59 PM
  • Adding -version 2.0 also works for this simple script, but causes other problems in my original script (which I won't go into here):

    powershell -version 2.0 -command {
      $path = "c:\temp"
      $path = Resolve-Path $path
      $acl = Get-Acl $path
      Set-Acl $path $acl

    Friday, April 26, 2013 3:29 PM
  • Get-acl and Set-ACL are pretty rough regardless of the version, check out the module from Raimund Andree here:


    Hope that helps! Jason

    • Marked as answer by Yan Li_ Monday, May 6, 2013 2:58 AM
    Friday, April 26, 2013 3:39 PM
  • Hi,

    Just checking in to see if the suggestions were helpful. Please let us know if you would like further assistance.


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    Cataleya Li
    TechNet Community Support

    Monday, April 29, 2013 6:01 AM
  • It doesn't inspire confidence in the Powershell platform when the answer is essentially "The built in commands are flaky - go get a community-provided module".

    Thanks anyway.

    Monday, May 6, 2013 1:45 PM
  • This issue(?) is still around on Server 2012 R2..

    You cannot use this command without specifying the properties;

    set-acl $bindir $acl

    the following worked for me;

    set-acl -Path $bindir -AclObject $acl

    Monday, March 10, 2014 2:43 AM
  • This fixed this script for me, and saved my day: http://community.spiceworks.com/scripts/show/2048-change-permissions-to-ntfs-folders-using-the-folder-name
    Friday, April 4, 2014 7:18 PM
  • This seems to have done the trick for me too - many thanks!
    Friday, April 4, 2014 7:22 PM
  • It wasn't specifically called out in this thread, but I assume that $binDir is a DirectoryInfo object that you obtained via Get-Item or something like that.  When you call Set-Acl with positional parameters and pass a DirectoryInfo object (or basically any non-string object), it binds to the -InputObject parameter instead of -Path.

    As has been pointed out, you can avoid this binding hiccup by specifying the -Path parameter by name (or by casting your $binDir variable to a string, or passing in $binDir.FullName to Set-Acl), instead of passing the DirectoryInfo object by position. You can also call $acl | Set-Acl in all versions, if you obtained $acl from the Get-Acl cmdlet (the Path parameter will bind by property name, and AclObject will bind by value.)

    Friday, April 4, 2014 7:44 PM
  • Makes perfect sense. I guess a better error message in this case would help diagnose potential argument binding problems. Thanks
    Friday, April 4, 2014 9:05 PM