Forum OpenACS Development: Re: NaviServer on Windows: [ns_logroll] returns "Permission denied"
Back then, We tried all possible combinations of Windows permissions, including Full Admin/Full Control and even granted ownership. It never worked.
So, we decided to give 'CopyFile' a go and it worked. Our feeling was that there was some sort of lock that the standard 'rename'/'copy' didn't like and we didn't have the chance to do more investigation than just using what worked for us back then.