You must use Windows Explorer and UAC must be enabled. You will get several
UAC prompts when trying to modify system files. If UAC is disabled you would
have to use the icacls command in a command prompt. It's much more
complicated. In Windows Explorer browse to the file. Right click it and pick
Properties. On the Security tab click on Advanced. Change the owner to
yourself. You may have to reboot or logoff then logon. You should now be
able to change the security settings.
Microsoft MVP - Shell/User
"Marcos Paione" <marcospaioneNOSPAM@hotmail.com> wrote in message
> Hi, how to change files (mapisvc.inf) permissions on windows vista, the
> file is in c:\windows\system32, and I'm member of Administrators group.
> Thanks a lot.