Re: [IE] IE7 corrupting ZIP files. Firefox does not. in Microsoft Help

Re: [IE] IE7 corrupting ZIP files. Firefox does not. in Microsoft Help http://www.dslreports.com/forum/r17602200 en Sun, 29 Nov 2009 18:42:48 EDT Sun, 29 Nov 2009 18:42:48 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17768467 noway1 : IE6SP2 on XP Pro:

HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip

IE6SP2 with Proxomitron enabled: Corrupted

IE6SP2 with Proxomitron (User-Agent spoofed as Mozilla/4.61 [ja] (X11; I; Linux 2.2.13-33cmc1 i686) : OKAY!!

IE6SP2 without any proxy enabled in IE6: Corrupted

Download with Flashget: OKAY!!

In all corrupted cases, the server is not sending a Content-Length header and this seems to be based on the User-Agent the client is sending. If you want it fixed, contact the web site. ]]> http://www.dslreports.com/forum/remark,17768467 Sun, 04 Feb 2007 09:56:34 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17767970 mmarinho : No doubt this is a Vista IE bug or Vista IE related issue.

-Manny]]> http://www.dslreports.com/forum/remark,17767970 Sun, 04 Feb 2007 05:05:27 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17767962 mmarinho : Vista RTM Ultimate. I also see this problem. In fact IE corrupts all http based downloads. Doesn't matter what it is, ZIP file, EXE file , etc. However it does not corrupt downloads that are transferred using an FTP link within IE. I have not had the time to research this issue and not sure what is causing it. Again on the same PC/OS using Firefox works fine for all downlods (HTTP or not).

-Manny]]> http://www.dslreports.com/forum/remark,17767962 Sun, 04 Feb 2007 04:58:18 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17614808 FROSTY : OZO

, yes, quite a strange effect indeed.

I'd like to thank everyone for taking the time and effort to help me troubleshoot this quirk with IE7. Especially severach

. I'm sure I and others will run into this problem again with other websites. I would like to know why some had no problem while downloading natively with IE7. Almost like the GZip detection of IE7 was turned off for those users like Irish Shark

.

--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17614808 Wed, 10 Jan 2007 10:37:18 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17610180 OZO : One more interesting thing for those who use Proxomitron v.4.5 with "NAOKO 4.5 CONFIG -- SIDKI 2006-09-03" filters.
If you choose "Bypass all filters" option - you will be able to download proper HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip file. If you turn it off (applying all default filters) - you'll get corrupted file again (as in case with direct connection between IE7 and web server). It's a quite strange effect...
--
Keep it simple, it'll become complex by itself...]]> http://www.dslreports.com/forum/remark,17610180 Tue, 09 Jan 2007 16:32:28 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17609846 OZO : Good catch severach

!

Now we know that file beginning with header similar to this one is in .gz format:

1F 8B 08 00 00 00 00 00 00 03

Next step is to find out why it's happening this way. I've checked communication between IE7 and web server when this accident happens. Take a look at log below:

+++GET 657+++
GET /utils/HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip HTTP/1.0
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
Referer: http://downloads.openwrt.org/utils/HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip
Accept-Language: en-us
UA-CPU: x86
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.0)
Host: downloads.openwrt.org
Connection: keep-alive
Accept-Encoding: gzip, x-gzip, deflate
RESP 657 : Vary killed: Accept-Encoding,User-Agent
 
+++RESP 657+++
HTTP/1.0 200 OK
Date: Tue, 09 Jan 2007 20:24:29 GMT
Server: Apache
Last-Modified: Tue, 30 Aug 2005 18:25:43 GMT
ETag: "f18001-ba62e-3ff91bd6537c0"
Accept-Ranges: bytes
Content-Encoding: gzip
Connection: close
Transfer-Encoding: chunked
Content-Type: application/zip
Cache-Control: public, max-age=86400
+++CLOSE 657+++

As we can see IE7 announces that it will accept encoding "gzip" and web server sends file that particular encoding method - "gzip". So, IE7 must to decode gzip-ed content and put output onto disk. As we see it's not happening in this particular case.

Second, I choose not to "Open" file, I specifically choose to "Download" that file. So, extension's interpretation on client side computer is irrelevant here. When I download a file - it should not be of IE7 or OS concern what content type is it. File should be written in file system as exact copy of the file in the web.

So, I think this is IE 7 bug that in some cases doesn't provide decoding (decompression) when it's required.

--
Keep it simple, it'll become complex by itself...]]> http://www.dslreports.com/forum/remark,17609846 Tue, 09 Jan 2007 15:48:28 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17609820 Lil Jon : interesting! good thread]]> http://www.dslreports.com/forum/remark,17609820 Tue, 09 Jan 2007 15:44:08 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17608779 FROSTY : severach

found the source of the problem!
Many thanks! :)

As a test based on severach

GZ info:
Renamed the .ZIP file downloaded with IE7 to .GZ.
Opened the .GZ file with both WinZIP and WinRAR.
Able to extract the inner file as a ZIP from either program.
Open that ZIP, and it works 100%.

I found this using google earlier today:
Turning off the default php zlib compression for IE browser download requests (and letting header content-length default to chunks) fixes the corrupted zip problem.

Now, does this have anything to do with IE7 encapsulating the file into GZip while leaving its extension as a ZIP? Or is there a registry key we can modify/create to prevent IE7 from encapsulating the file in GZip form? Or is this soley a bug that must be worked around?
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17608779 Tue, 09 Jan 2007 13:30:26 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17608388 Irish Shark :

said by javaMan

said by Irish Shark

:

Also what is screwy is that I had no issues in Vista or XP Pro SP2.

dmxrob6

also said that he had no issues.

I can download it again and upload the reademe file or the PDF is you think that I am BSing.

But you said you were using some kind of download manager, correct? Perhaps that is why. What are the results if you don't use it?

I have done it both ways in Vista and XP and no issues.
--
"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,17608388 Tue, 09 Jan 2007 12:40:23 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17608223 therube :

said by severach

:

The IE7 ZIP has been encased in gzip ... the inner file it is identical to the FF download.

You're right :)!

I use Servant Salamander rather then Total Commander. SS can open .gz files, but it did not catch the fact that the downloaded ".zip" was in fact a .gz. Once renamed to *.gz, it opened it & extracted then enclosed .zip just fine.]]> http://www.dslreports.com/forum/remark,17608223 Tue, 09 Jan 2007 12:11:30 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17608114 severach : Yep, memory isn't it. I'm getting the same results. Now that I'm awake it only took a few minutes with Total Commander to see what's happening.

The FF file is the undamaged original ZIP. The IE7 ZIP has been encased in gzip which some programs including Windows Explorer barf on but Total Commander doesn't. Total Commander is able to enter the IE7 file, identify it as gz, and extract or compare the ZIP file inside. Though the .zip extension has been stripped from the inner file it is identical to the FF download. The IE7 file isn't damaged, it's just in a format that doesn't match it's extension which confuses rudimentary extension based programs like Windows Explorer. Programs that handle gzip and know how to determine the format of the file without depending on the extension will not show an error.

My second WAG is to say that the server is using gzip server side compression and IE7 is forgetting to remove the gzip wrapper. Looks like this bug lies squarely on the shoulders of the IE team. It might be handy to avoid gzip compression on already compressed files but I don't see any reason why webmasters should need to worry about that. I don't think IE7 is improving any standard here.]]> http://www.dslreports.com/forum/remark,17608114 Tue, 09 Jan 2007 11:52:15 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607970 therube : Interesting.
It is more then just the first few bytes of the file that are different.

This is from WinDiff. (Red is the valid version, yellow is corrupted version. Variances continue beyond & to the right, of what I have captured.)

I get the same md5 checksums as OZO for the file HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip.

Downloaded via SeaMonkey, IE7 (XP SP2), & LeechFTP.
SeaMonkey & LeechFTP downloads are identical & valid.
IE7 download is corrupted.

It will not have anything to do with memory - as others are returning the exact same results.

If the file is being "served" incorrectly (& I'm only guessing on this) but like application/text vs. application/zip, IE could then be downloading it using one method, Mozilla, looking beyond what IE is, is downloading it using another method?

Or not? A header check shows:

HTTP/1.1 200 OK =>
Date => Tue, 09 Jan 2007 16:41:00 GMT
Server => Apache
Last-Modified => Tue, 30 Aug 2005 18:25:43 GMT
ETag => "f18001-ba62e-3ff91bd6537c0"
Accept-Ranges => bytes
Content-Length => 763438
Vary => Accept-Encoding,User-Agent
Connection => close
Content-Type => application/zip
http://www.webconfs.com/http-header-check.php

]]> http://www.dslreports.com/forum/remark,17607970 Tue, 09 Jan 2007 11:22:51 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607821 BoomerSooner : My gut still tells me that they uploaded the files in ASCII format. Trust me, I've done it on NUMEROUS occasions when I "force" my FTP program to upload a particular file in ASCII then forget to change it or set it back to automatic.

The thing I'd like to know is why there are those who have no problem opening that "alleged" bad file. Is that a good thing or a bad thing? Is the file contained within the zip "good" or "bad". Could it have something (possibly not visible to the naked eye) wrong within it? I guess a good test would be to have someone who can open it EITHER way, to do a byte for byte comparison of the file contained within each zipfile. If they compare perfectly, then I'd say it has something to do with the way each persons PC is set up to download/translate a ZIP file (or possibly ANY "binary" type file).

Gotta run for a while. Will be back later today.
--
I'll take "Things Only I Would Know" for $10,000.]]> http://www.dslreports.com/forum/remark,17607821 Tue, 09 Jan 2007 10:49:27 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607677 FROSTY : I stand corrected, the byte file size is different by 15 bytes as OZO

pointed out. Thanks.

BoomerSooner

, Winzip 8/9/10 & WinRar 3.60 both report your ORCABAD.ZIP as corrupt, while ORCAGOOD.ZIP opens correctly. I have no download managers. I've tried SaveAs, Open, Open in new Tab, Open in New Window. Same results with the files respectively. Would you say the problem lies in the method the file was uploaded versus a setting in IE, a registry key, or a system file?
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17607677 Tue, 09 Jan 2007 10:25:51 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607591 MIXZ1 : Win XP Pro SP2
IE 7
Winzip 10

No Problem at all.]]> http://www.dslreports.com/forum/remark,17607591 Tue, 09 Jan 2007 10:10:10 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607406 BoomerSooner :

said by OZO

:

I was checking HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip file download:
good file: 763,438 bytes, MD5=d2b31f3bb90070513f9fb8715d492278
bad file: 762,481 bytes, MD5=16d4af72c24d1277e8dd22b20f4d9dab

Same thing I saw with the two test files I tried. In my case, the "good" file was 15 bytes larger than the "bad" file. Still think they inadvertently uploaded the files in ASCII format.

For whatever reason, IE6 and/or IE7 under Vista and/or those who ARE able to open the file have some type of mechanism on their PC's that "corrects" or "ignores" the bad formatting. Whether it be something within Windows itself or due to some download manager. I agree, would be interesting to figure out the hows and whys.

*edit* For those of you who'd like to try, here are links to the two files I uploaded. Just zip files containing the ORCA.MSI. ORCABAD.ZIP was uploaded in ASCII format, and ORCAGOOD.ZIP was uploaded in BINARY format. See how your particular setup works when you try to open each zip file. I use WINZIP and it tells me the ORCABAD.ZIP file is bad ...

»www.home-turf.com/orcabad.zip

»www.home-turf.com/orcagood.zip
--
I'll take "Things Only I Would Know" for $10,000.]]> http://www.dslreports.com/forum/remark,17607406 Tue, 09 Jan 2007 09:26:15 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607404 swinn : Right click the link and choose "Save Target As..."]]> http://www.dslreports.com/forum/remark,17607404 Tue, 09 Jan 2007 09:24:49 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17607317 brandon :

said by severach

:

»www.memtest.org/

I suspect the problem does not lie with the software.

I suspect you are way off base.]]> http://www.dslreports.com/forum/remark,17607317 Tue, 09 Jan 2007 09:06:01 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17606597 GeorgeCr : I've been using IE7 since launch and haven't had any problems with file downloads (including zip).]]> http://www.dslreports.com/forum/remark,17606597 Tue, 09 Jan 2007 02:01:32 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17606516 severach : »www.memtest.org/

I suspect the problem does not lie with the software.]]> http://www.dslreports.com/forum/remark,17606516 Tue, 09 Jan 2007 01:30:27 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17606489 OZO : I just hope that may be someone will come with the idea why it's happening.

Common zip file header begins with two bytes 'PK'.
Download file is corrupted by adding right at the beginning:
'1F 8B 08 00 00 00 00 00 00 03'
followed by '00 31 80 CE 7F'. Then common header begins. Notice this set of 5 bytes. Similar sets will be inserted on a reguar basis.
E.g. before address 0x08031 - there is set '00 11 80 EE 7F'
Then before address 0x10042 - there is set '00 18 80 E7 7F'
Then before address 0x1805A - there is set '00 17 80 E8 7F'
and so on...

What the heck?

I was checking HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip file download:
good file: 763,438 bytes, MD5=d2b31f3bb90070513f9fb8715d492278
bad file: 762,481 bytes, MD5=16d4af72c24d1277e8dd22b20f4d9dab
--
Keep it simple, it'll become complex by itself...]]> http://www.dslreports.com/forum/remark,17606489 Tue, 09 Jan 2007 01:18:55 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17606425 IGGY : HairyDairyMaid_WRT54G_Debrick_Utility_v48.zip Gives me an error. I'm using IE 7 with Vista 64 bit RTM. I even tried opening the zip file with WinRAR. That program gave me an error for that zip as well. The reason I tried that is do to the fact at one time there was a newer form of zip compression that had been giving Microsoft's utility an issue. This may have been fixed for Vista though. I've not seen this issue pop up on any other sites though. So I would tend to believe this is something specific to where the zip is being downloaded from.
--
Test PC Security
Cable Diagnostics
BLOG ZoneAlarm Help Vista x64 Insightbb Plus 15000/1500 BroadVox Direct]]> http://www.dslreports.com/forum/remark,17606425 Tue, 09 Jan 2007 00:58:34 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17605300 Link Logger : Running XP and Vista with IE 7, no problems here, but I have an idea and I'll try it tonight when I get home.

Blake]]> http://www.dslreports.com/forum/remark,17605300 Mon, 08 Jan 2007 21:55:11 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17604962 FROSTY :

said by javaMan

:

Why is a valid question and hopefully it will get corrected but I don't see it as reason not to "trust" IE7. By that I mean you now know there are situations where this might occur so when it happens you will know what steps to take to mitigate the situation until it is corrected. That it will be corrected is an assumption on my part of course. :)

Exactly...
Point and case with ZIPs. :)

Yet, what about firmware files downloaded in their native format? For example, if a firmware file was corrupted on download by IE7 prior to uploading to the device, then the device could/will become a brick if it accepts the firmware upload.
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17604962 Mon, 08 Jan 2007 21:08:40 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17604213 javaMan :

said by Irish Shark

:

Also what is screwy is that I had no issues in Vista or XP Pro SP2.

dmxrob6

also said that he had no issues.

I can download it again and upload the reademe file or the PDF is you think that I am BSing.

But you said you were using some kind of download manager, correct? Perhaps that is why. What are the results if you don't use it?
--
Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness. . . Isa. 5:20]]> http://www.dslreports.com/forum/remark,17604213 Mon, 08 Jan 2007 19:23:13 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17604133 Irish Shark : Also what is screwy is that I had no issues in Vista or XP Pro SP2.

dmxrob6

also said that he had no issues.

I can download it again and upload the reademe file or the PDF is you think that I am BSing.
--
"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,17604133 Mon, 08 Jan 2007 19:13:35 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17604091 javaMan :

said by FROSTY

:

. . .

Yes, zip files from other sites seem to download fine for me too. Yet not being able to download from OpenWRT raises the questions: Why? and What other downloads from other sites could become corrupted? Like firmware files in .BIN format. Who's to say IE7 will download them 100% correctly?

BoomerSooner

Why is a valid question and hopefully it will get corrected but I don't see it as reason not to "trust" IE7. By that I mean you now know there are situations where this might occur so when it happens you will know what steps to take to mitigate the situation until it is corrected. That it will be corrected is an assumption on my part of course. :)
--
Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness. . . Isa. 5:20]]> http://www.dslreports.com/forum/remark,17604091 Mon, 08 Jan 2007 19:08:35 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17604036 FROSTY :

said by hpguru

:

Strange. When I first tried it I got the same result as the OP but changing that setting allowed me to open the files.

Interesting. Enabled is the default for the Medium-High Internet Zone security setting. Plus, changing the setting to disabled and back to enabled made no difference here.

said by javaMan

:

I'm not sure why it is but it seems to be those particular files. I have no trouble with zip files I download anywhere else. Why they will work when downloaded with Firefox and not with IE I haven't a clue.

Yes, zip files from other sites seem to download fine for me too. Yet not being able to download from OpenWRT raises the questions: Why? and What other downloads from other sites could become corrupted? Like firmware files in .BIN format. Who's to say IE7 will download them 100% correctly?

BoomerSooner

makes an interesting point about the files could have been uploaded to the host server in ASCII format instead of binary. Yet, why does IE6 and Firefox download the zips correctly while IE7 corrupts them? Very aggravating and leads me to distrust IE7.
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17604036 Mon, 08 Jan 2007 19:00:01 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603707 javaMan : I'm not sure why it is but it seems to be those particular files. I have no trouble with zip files I download anywhere else. Why they will work when downloaded with Firefox and not with IE I haven't a clue.
--
Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness. . . Isa. 5:20]]> http://www.dslreports.com/forum/remark,17603707 Mon, 08 Jan 2007 18:11:56 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603610 hpguru : Strange. When I first tried it I got the same result as the OP but changing that setting allowed me to open the files.]]> http://www.dslreports.com/forum/remark,17603610 Mon, 08 Jan 2007 17:56:33 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603536 OZO : I've tried it both ways - with Enable and with Disable.
In both cases I'm getting the same file with the same size and same MD5:
HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip 762,481 bytes 16d4af72c24d1277e8dd22b20f4d9dab

It's corrupted file.
--
Keep it simple, it'll become complex by itself...]]> http://www.dslreports.com/forum/remark,17603536 Mon, 08 Jan 2007 17:44:55 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603335 hpguru : In your Internet Zone (assuming the site is in that zone) change the setting "Open files based on content, not file extension" to Enable. After downloading the files I would disable it again.

An alternative to changing Internet Zone setting is to add the site to your Trusted Zone (only if you trust them) and enable the above setting in that zone.
--
Where's Jesus?
Dear Jesus!]]> http://www.dslreports.com/forum/remark,17603335 Mon, 08 Jan 2007 17:15:42 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603295 dmxrob6 : Works fine for me.]]> http://www.dslreports.com/forum/remark,17603295 Mon, 08 Jan 2007 17:09:24 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603239 Irish Shark : HairyDairyMaid_WRT54G_Debrick_Utility_v48.zip

Just dandy. I don't know if it matters, but I used "Free Download Manger" in both cases.

Also, HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip is OK.
--
"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,17603239 Mon, 08 Jan 2007 17:00:39 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17603073 OZO : HairyDairyMaid_WRT54G_Debrick_Utility_v41.zip is corrupted with IE7 download.
--
Keep it simple, it'll become complex by itself...]]> http://www.dslreports.com/forum/remark,17603073 Mon, 08 Jan 2007 16:35:51 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602789 Irish Shark : Just booted into XP Pro SP2 with IE7.

No issue with the .zip file.
--
"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,17602789 Mon, 08 Jan 2007 15:59:37 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602630 BoomerSooner : I got the same result. The Zip file was corrupted.

As a test, I FTP'd a ZIP file to my own server but I uploaded the file in ASCII format (which is incorrect). When I downloaded the same file back to my PC using IE7, the file was corrupt (as expected). Then, I transferred the file using BINARY mode and redownloaded. The zip file opened up perfectly.

I suspect they inadvertently uploaded the file in ASCII format instead of BINARY.
--
I'll take "Things Only I Would Know" for $10,000.]]> http://www.dslreports.com/forum/remark,17602630 Mon, 08 Jan 2007 15:33:49 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602473 Mem : IE7 XPSP2 showed a zip icon (file xxx_Utility_v41.zip) but the zip file gave an error trying to open:

End-of-central-directory signature not found. Either this file is not a Zip file, or it constitutes one disk of a multi-part Zip file.

Downloading with Fx 2.0.0.1 I was able to open the zip file and read the pdf file inside.]]> http://www.dslreports.com/forum/remark,17602473 Mon, 08 Jan 2007 15:02:59 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602418 FROSTY : Forgot to mention:

IE7 = XP SP2
IE6 = W2K SP4

I had a hunch the ZIPs will download correctly with IE7, yet I'm trying to figure out why these 2 PCs here at work are corrupting the downloads. Doesn't make sense because the file sizes (down to the byte level) match between downloading from IE7, IE6, and Firefox..
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17602418 Mon, 08 Jan 2007 14:51:42 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602200 Irish Shark : I did not have any issues with that .zip file or any other ones.

Using IE 7 under Vista RC2.
--
"You can observe a lot by watching". Yogi Berra]]> http://www.dslreports.com/forum/remark,17602200 Mon, 08 Jan 2007 14:09:37 EDT Re: [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602149 David : I only loaded IE7 on one machine so far but I will have to find a zip file to check this out. ]]> http://www.dslreports.com/forum/remark,17602149 Mon, 08 Jan 2007 14:00:29 EDT [IE] IE7 corrupting ZIP files. Firefox does not. http://www.dslreports.com/forum/remark,17602119 FROSTY : Ok, I've stumbled upon an issue with IE7.

From a specific download page:
»downloads.openwrt.org/utils/

2 PCs running IE7
2 PCs running IE6
All 4 PCs have Firefox 1.5.0.9 installed.

The PCs with IE7 corrupt the ZIP files once downloaded.
The PCs with IE6 DO NOT corrupt the ZIP files.
Firefox DOES NOT corrupt the ZIP files.

For the IE7 PCs, I have deleted history, cookies, temp files, rebooted, still corrupts the ZIP files from the above link.

Has anyone else experienced corrupted downloads with IE7? If so, what's the solution besides using Firefox or going back to IE6 (which is stupid, IE6 is a security risk)

Thanks
--
"When you set yourself on fire and aim for the sky, you hope to leave behind some sparks of heat and light ... Like a vapor trail." - Neil Peart 2002]]> http://www.dslreports.com/forum/remark,17602119 Mon, 08 Jan 2007 13:55:44 EDT