windows allows alternative acl semantics when files are being moved on one NTFS volume. With
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MoveSecurityAttributes = 0 (on the client)
the ACLs are being set like if the file would have been copied there and not moved. This worked with Windows XP. With Windows 7 and Vista a hotfix was needed to make this work:
We should also support this MoveSecurityAttributes=0 semantic.
by the way with win XP MoveSecurityAttribytes defaults to 1 (ACLs stay)
with Win 7 the default behaviour is MoveSecurityAttribytes=0 but the registry key only comes with the before mentioned hotfix. The resetting of the ACLs is being done by Explorer on client-side however, not by the server.
the kb2617058 is also quite confusingly written as is only suggests to set MoveSecurityAttribytes=0 - which is already the Win 7 default. The patch allows to do the opposite - set that thing to 1 again - to the XP default.
nice read about this:
looks like there is actually nothing to do for us here.