Q: I have been trying to write a script that will allow me to set specific
folder permissions on my profiles folders in my domain. I cannot garauntee
that I am the owner of the folder so the set-acl cmdlt will not work as far
as i understand. I would be open to any option at this point of how to set
permission on many folders with a powershell script.

I have also tried to use cacls, xcacls, and Icacls to no avail. They seem
to work fine if i manually specify the usernames. If I refrence a variable
that holds the username then it craps out on me. I am still open to the
cacls route if someone has had better experience.

At this point I will entertain any solution.

Thanks
Jacob sampson

Have tou read this link: http://support.microsoft.com/kb/274443 - this is
right way.

The wron way is to use WMI:

$path = "C:\Test"
$user = "Administrator"
$path = $path.replace("\", "\\")
$SD = ([WMIClass] "Win32_SecurityDescriptor").CreateInstance()
$ace = ([WMIClass] "Win32_ace").CreateInstance()
$Trustee = ([WMIClass] "Win32_Trustee").CreateInstance()
$SID = (new-object security.principal.ntaccount
$user).translate([security.principal.securityidentifier])
[byte[]] $SIDArray = ,0 * $SID.BinaryLength
$SID.GetBinaryForm($SIDArray,0)
$Trustee.Name = $user
$Trustee.SID = $SIDArray
$ace.AccessMask =
[System.Security.AccessControl.FileSystemRights]"FullControl"
$ace.AceFlags = "0x3"
$ace.AceType = 0
$ace.Trustee = $trustee
# get current ACL from DACL
$oldDACL = (gwmi Win32_LogicalFileSecuritySetting -filter
"path='$path'").GetSecurityDescriptor().Descriptor.DACL
# add current DACL to new DACL object
$SD.DACL = $oldDACL
# and add new ACE to DACL
$SD.DACL += @($ace.psobject.baseobject)
# set SE_DACL_PRESENT flag
$SD.ControlFlags = "0x4"
$folder = gwmi Win32_LogicalFileSecuritySetting -filter "path='$path'"
# write new DACL to object ACL
$folder.setsecuritydescriptor($SD)

perhaps xcacls/icacls will be more simple solution.
--
WBR, Vadims Podans
MVP: PowerShell
PowerShell blog - www.sysadmins.lv