Thanks guys, I went with the simple method of connecting it to the same network and used the router to restrict internet access as per Saabs post. I need some further help on file sharing. On the original network there were only 2 PCs and the file sharing security wasnt important. This has now changed as I dont want the shopfloor PC to have access to some documents. I have tried to alter the share on the critical files on PC2 to restrict it to PC1 access only but when I click on sharing and select permissions it doesnt give me the option to select PC1 only PC2 any ideas?