My guest OS is XP home. I am trying to set up file sharing so I can transfer files from my Mac to XP. I have an ethernet connection from a cable modem This comes from the Parallels discussion board. I did all the steps but what I don't know is 1. On the OS X side do I use To computers using Select Airport. I don't use Airport 2. On the Parallels side do I select Airport connection (en1) 3. What does "Also you have to actually *start* web sharing by clicking the start button" My question is What start button?" INSTRUCTIONS FROM PARALLELS DISUCSSION BOARD On the OS X side: Open system preferences-->Sharing->click on internet tab Share your connection from: select Built in ethernet To computers using Select Airport Click on Services tab make sure "Personal Web Sharing " is checked Click on firewall tab if firewall is running, make sure box next to Personal web sharing is on close system preferences. Open parallels workstation In the configuration panel, ie before you run the VM, click on Network Adapter Check both boxes under device status Select Bridged Ethernet select Airport connection (en1)<-- this is on MBP, iMac should be similar Boot your VM and voila. Your VM is connecting to airport on the mac which connects it to built in ethernet This works on an MBP even if Airport is off in the menuBar Thanks, this helped me. I don't use Airport, so used the default adapter instead of the en1. Also you have to actually *start* web sharing by clicking the start button