Hi anyone know how to correct an "Access Denied" error for the Local Services ALerter, SSDP and Upnp. The logon is NT Authority\LocalService but they all refuse to start with the Access Denied error. I have another XP machine which hasnt got this problem but have checked all the gpedit.msc security settings and they are the same. I have admin priveleges and am at my wits end trying to solve this one. Can anyone help ?