I am trying to add IIS 5.0 to my install of Windows 2000 professional. I understand that you need to go to add/remove programs or rerun the install disk. However, when I do this I get to a point where it asks me to locate a certain file "_vti_inf" on a disk called "Service Pack Files" I am unable to locate this disk or file. Does anyone know what disk they are referring to? I am using the MSDN disks for my installation and all I have is the Win 2000 disk(all versions) and then the Service Packs 1 & 2. Thank you very much for your assistance