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Predefined Protocols

Windows Internet Explorer implements various protocols that can be used to identify certain information. A protocol is a set of rules and standards that enables two or more computers to communicate.

Note   'about:' is not a protocol as it does not enable two or more computers to communicate (see earlier definition). No data is being sent to the client — the client is simply being instructed to display a certain pre-defined set of information.

Predefined Protocols

TopicContents
data Protocol

Specifies a data URI, which is a resource, typically an image, embedded in the URI as opposed to one loaded from an external URL.

file protocol

Opens a file on a local or network drive.

ftp Protocol

Opens a file transfer session with the specified site address.

gopher Protocol

Opens a gopher session with the specified site address.

http Protocol

Opens a hypertext transfer session with the specified site address.

https Protocol

Opens a secure hypertext transfer session with the specified site address.

javascript Protocol

Specifies that the URL is JavaScript code.

mailto Protocol

Opens a client's e-mail system and begins a new email message.

news Protocol

Opens a newsgroup in the client's default news application.

res Protocol

Specifies a resource that will be obtained from a module.

telnet_Protocol

Opens a terminal login session with the default Telnet client.

view-source Protocol

Obsolete for Microsoft Internet Explorer 6 for Windows XP Service Pack 2 (SP2) and later. For earlier versions, opens a Web page in the client's default HTML editor.

 

Note  Some of these protocols are no longer supported by Internet Explorer.

 

 

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