We were using NT Performance Monitor to log measurements of servers running behind a firewall, accessing the servers via IP address. However, when trying to view the log captured, PerfMon seems to have converted the IP addresses to machine names and refuses to display the objects measured against the machine names it seems to have used - presumably because the object data was recorded against the IP address ? Does anyone know how I might be able to get into the file by other means to access the data I know is there (judging by the volume of the log generated)