V

virtual root

A shortcut pointer to a physical storage location. Virtual roots are normally defined to allow users and applications to connect with a short “friendly” path instead of navigating a complex hierarchy. IIS uses the concept of virtual roots to expose resources provided by a Web server.

virtual server

An instance of any service type normally implemented in IIS. For example, a virtual server can be an instance of FTP, IMAP, Instant Messaging, HTTP, NNTP, POP3, or SMTP. An Exchange server can host multiple virtual servers of the same type on each computer. Each virtual server can have its own configuration properties, such as bound IP addresses, port number, and authentication type.

virus

A piece of code that attaches itself to other programs or files to replicate itself. When the host code is run, the virus runs as well.