zip - Dave's Blog


Tweet from David_Risney

2015 Aug 4, 3:08
Very helpful site to determine which channels you're likely able to receive OTA based on your address or zip code: 

HTTP Compression Documentation Reference

2012 Jun 13, 3:08
There's a lot of name reuse in HTTP compression so I've made the following to help myself keep it straight.
HTTP Content Coding Token gzip deflate compress
An encoding format produced by the file compression program "gzip" (GNU zip) The "zlib" format as described in RFC 1950. The encoding format produced by the common UNIX file compression program "compress".
Data Format GZIP file format ZLIB Compressed Data Format The compress program's file format
Compression Method Deflate compression method LZW
Deflate consists of LZ77 and Huffman coding

Compress doesn't seem to be supported by popular current browsers, possibly due to its past with patents.

Deflate isn't done correctly all the time. Some servers would send the deflate data format instead of the zlib data format and at least some versions of Internet Explorer expect deflate data format instead of zlib data format.

PermalinkCommentscompress compression deflate gzip http http-header technical zlib

Changing Windows Live IDs

2012 Jun 6, 2:54

Use of my old Hotmail account has really snuck up on me as I end up caring more and more about all of the services with which it is associated. The last straw is Windows 8 login, but previous straws include Xbox, Zune, SkyDrive, and my Windows 7 Phone. I like the features and sync'ing associated with the Windows Live ID, but I don't like my old, spam filled, hotmail email address on the Live ID account.

A coworker told me about creating a Live ID from a custom domain, which sounded like just the ticket for me. Following the instructions above I was able to create a new Live ID but the next step of actually using this new Live ID was much more difficult. My first hope was there would be some way to link my new and old Live IDs so as to make them interchangeable. As it turns out there is a way to link Live IDs but all that does is make it easy to switch between accounts on Live Mail, SkyDrive and some other webpages.

Instead one must change over each service or start over depending on the service:

In the Xbox 360 system menu you can change the Live ID associated with your gamertag. This worked fine for me and I got an email telling me about the transfer of my Microsoft Points.
There's no way to do this for the Zune specifically, however changing over your Xbox account also transfers over all your Zune purchased content. I don't have a Zune Pass so I can't confirm that, but all of my previously purchased television shows transferred over successfully.
Windows 7 Phone
To change the main Live ID associated with your phone, reset your phone to factory default and start over. All purchased applications are lost. Had I purchased any applications I would have been pissed, but instead I was just irritated that I had to reset my phone.
I don't use my Hotmail account for anything and it only sits and collects spam. Accordingly I didn't attempt switching this over.
I didn't have much in my SkyDrive account. I downloaded all files as a zip and then manually uploaded them to the new account.
PermalinkCommentshotmail domain win8 skydrive technical windows live-id

"Additional Media Type Structured Syntax Suffixes" - Tony Hansen

2012 Apr 26, 3:15

This document defines several Structured Syntax Suffixes for use with media type registrations. In particular, it defines and registers the “+json”, “+ber”, “+der”, “+fastinfoset”, “+wbxml” and “+zip” Structured Syntax Suffixes, and updates the “+xml” Structured Syntax Suffix registration.

PermalinkCommentstechnical json mime ietf rfc standard

Corrections: Squirrel Nut Zippers

2012 Feb 15, 5:11


Staff writer J.O. Rolston’s Jan. 28 feature “Swing Set,” about swing revivalists Squirrel Nut Zippers, was mistakenly written in 2012. He meant to write it in 1997. The Onion regrets the error.”

I like Squirrel Nut Zippers…

PermalinkCommentshumor music squirrel-nut-zippers

Encode-O-Matic Update: Compression, Hex View, Quick Show Output

2010 Mar 9, 9:08

I've just put up an update for Encode-O-Matic with the following improvements:

PermalinkCommentstechnical encodeomatic project

Coding Horror: You're Reading The World's Most Dangerous Programming Blog

2010 Jan 20, 8:28GZip vs Deflate execution speeds. Deflate found to be much faster in particular cases and about the same in the rest.PermalinkCommentsgzip deflate performance technical http compression programming development blog

Making browsers faster: Resource Packages · Alexander Limi

2009 Nov 17, 6:52"What if there was a backwards compatible way to transfer all of the resources that are used on every single page in your site — CSS, JS, images, anything else — in a single HTTP request at the start of the first visit to the page? This is what Resource Package support in browsers will let you do." Another resource packaging implementation but this suggests they'll actually implement this in FireFox. One issue with all of these is you can't use the resources from the package in any context that didn't ask to use the package for fear of security issues which means you can't stick the packaged resources in your HTTP cache. The package itself could go in the cache which would mean multiple packages per page or all your page's resources in one package. Of course the same security issues are a concern for all of the packaging proposals if a site has any way to inject into the source the request for the package. It'd be a similar vector to the UTF7 XSS issues but much worse attack.PermalinkCommentssecurity web browser http zip firefox resource technical via:kris.kowal

RFC 1951 - DEFLATE Compressed Data Format Specification version 1.3

2009 Sep 3, 7:17"This specification defines a lossless compressed data format that compresses data using a combination of the LZ77 algorithm and Huffman coding." Also see RFC 1950 zlib, a wrapper compression format that can use deflate, and RFC 1952 gzip, a compressed file format that can use deflate.PermalinkCommentstechnical rfc ietf compression http deflate gzip zlib

Timefire: On Reducing the Size of Compressed Javascript (by up to 20%)

2009 Sep 1, 4:39"...what effect does the large-scale structure of the JS output code have on the DEFLATE algorithm of GZIP which is used to serve up compressed script?" Another instance of using knowledge of the specific file type to get gains in compression. Is there a web proxy running all this at which I can point my phone?PermalinkCommentsvia:kris.kowal performance javascript gzip deflate compression web technical

CSS minifier and alphabetiser – Barryvan

2009 Sep 1, 4:36"I’ve written a small Java application that will read in a CSS file and output its contents to stdout or another file in a format that’s optimised for gzipping." Cool!PermalinkCommentsvia:kris.kowal technical compression css web performance gzip java [download] - the slip

2008 May 12, 2:38Nine Inch Nails latest album 'The Slip' is available for free to download. Got mine as a zip of mp3s including cover art as pdf, although other audio formats are available. OK!PermalinkCommentsnin music free download

bsp2wrl - Tool to convert Quake BSP levels to VRML

2008 Feb 26, 11:47This is the readme for bsp2wrl which converts Quake BSP levels to VRML. Two out of date file types that taste great toghether. The zips for the tool are in the same folder.PermalinkCommentsquake game tool free download vrml bsp conversion

Giant White Glove

2008 Feb 11, 7:39FTA: "This is an experiment for the White Glove Tracking project, made with Java and processing. Source:, all:"PermalinkCommentsvideo java humor white-glove-tracking micheal-jackson via:kris.kowal

webpage wind maker

2007 Apr 15, 11:55Uses wind data from stated zipcode to blow bits of webpages around.PermalinkCommentshumor wind visualization browser dhtml


2006 Dec 20, 4:37Free compression application.PermalinkCommentssoftware zip compression opensource free
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