Knowledge Base

PRB: FTP Does Not Support InternetSetFilePointer

Article ID: 168408

Article Last Modified on 5/17/2002

APPLIES TO

This article was previously published under Q168408

SYMPTOMS

InternetSetFilePointer is wrongly documented as supporting FTP and Gopher protocols. In reality it is only supported for the HTTP protocol and only works for requests to servers that support the HTTP/1.1 "RANGE" header.

CAUSE

Support for partial file download is contingent on both the client and the server. Because of a lack of FTP servers that support partial file downloads, no support for FTP was included for InternetSetFilePointer. The Gopher specification does not support partial file downloads.

STATUS

This behavior is by design.

Keywords: kbprb KB168408


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