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Article #422Re: Multi-file selection and download using HTTP?
From: Andrew McLaren
Date: Sat, 09 Oct 2004 23:42
Date: Sat, 09 Oct 2004 23:42
46 lines
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2887 bytes
> One of my common needs is to download several data files from a web > page. Using MSIE 6 I seem to be limited to selecting one file at a > time. This is a bit of a nuisance as it requires interrupting other > work to go back to the page to select the next in line, etc etc. Internet Explorer limits the number of concurrent sessions to a web server, to comply with the HTTP 1.1 Specification (RFC 2068) ... 9.1.2) <snip> Clients that use persistent connections SHOULD limit the number of simultaneous connections that they maintain to a given server. A single-user client SHOULD maintain AT MOST 2 connections with any server or proxy. (from http://www.w3.org/Protocols/rfc2068/rfc2068) This means you can download at most two files at a time, when using IE. Some other browsers allow you to have more concurrent sessions; however these browsers are devaiting from W3C and RFC standards. There are two main ways you can work around this: 1) use a client-side download manager. The download manager (at least, good ones) will serialise the file requests automatically for you, so that while you're still only downloading max 2 files at a time, it remembers what files you want and sends further requests as sessions become available. This is the most "correct" way to solve the problem. There are a number of commercial, shareware and free download managers, out there on the web. 2) If you don't mind being a hog, you can increase the number of simultaneous HTTP sessions that Internet Explorer will provide. You can do this by editing the registry. The steps are described in Knowledgebase article 183110: http://support.microsoft.com/default.aspx?scid=kb;en-us;183110 There might be other reasons to consider using an alternative browser to Internet Explorer, but the download limit is not one of them! ;-) Hope it helps, Andrew
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X-Google-Thread: 112049,f00357bbbc4a76be X-Google-Thread: 108c83,f00357bbbc4a76be X-Google-Thread: 104805,f00357bbbc4a76be X-Google-Thread: ff718,f00357bbbc4a76be X-Google-Attributes: gid112049,gid108c83,gid104805,gidff718,public X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!newsfeed-east.nntpserver.com!nntpserver.com!news1.optus.net.au!optus!newsfeeder.syd.optusnet.com.au!news.optusnet.com.au!not-for-mail Newsgroups: alt.comp.freeware,aus.computers,alt.msdos.batch,alt.msdos.batch.nt Subject: Re: Multi-file selection and download using HTTP? From: Andrew McLaren <baz.com> References: <2sqev6F1ljko0U1@uni-berlin.de> Organization: Not much ... Message-ID: <Xns957E62C4954C7ggz@211.29.133.50> Followup-To: alt.msdos.batch,alt.msdos.batch.nt User-Agent: Xnews/5.04.25 Date: 09 Oct 2004 23:42:16 GMT Lines: 46 NNTP-Posting-Host: 211.30.230.45 X-Trace: 1097365336 20124 211.30.230.45