Downloading Babypips Attachments

[dpaterso]

Hello,

Is anybody else having this problem:

I can no longer download attachments from the threads (posts). To be more precise: they download but they are corrupt e.g. WinZip informs me that the downloaded archives are corrupt and cannot be opened.

Now the STRANGE part (there is ALWAYS one is there not): I have NO problem downloading attachments from 'that other forex site' (FF)!!!

So what's changed on MY side:

I recently performed a 'clean' Windows XP installation on the workstation in question and have downloaded and installed every update and patch from Microsoft 'known to man'. In other words: this is a 'clean' and totally 'up to date' installation.

What's more: I have two other workstations and I don't have this problem on them. The difference between them and my main workstation (the one in question)? NOTHING other than Internet Explorer 8. That's it. The other two are also kept 'Microsoft udated' every week EXCEPT for Internet Explorer i.e. the other two workstation still have Internet Explorer 6 installed on them (with Internet Explorer 6 updates).

It's not 'the end of the world' i.e. they're all networked so I can download Babypips attachments on the other two workstations BUT I'd like to know the CAUSE of the problem (I have that kind of mind of course)!!! LOL!!!

Any ideas???

Regards,

Dale.

[cheeta]

Originally Posted by dpaterso

Hello,

Is anybody else having this problem:

I can no longer download attachments from the threads (posts). To be more precise: they download but they are corrupt e.g. WinZip informs me that the downloaded archives are corrupt and cannot be opened.

Now the STRANGE part (there is ALWAYS one is there not): I have NO problem downloading attachments from 'that other forex site' (FF)!!!

So what's changed on MY side:

I recently performed a 'clean' Windows XP installation on the workstation in question and have downloaded and installed every update and patch from Microsoft 'known to man'. In other words: this is a 'clean' and totally 'up to date' installation.

What's more: I have two other workstations and I don't have this problem on them. The difference between them and my main workstation (the one in question)? NOTHING other than Internet Explorer 8. That's it. The other two are also kept 'Microsoft udated' every week EXCEPT for Internet Explorer i.e. the other two workstation still have Internet Explorer 6 installed on them (with Internet Explorer 6 updates).

It's not 'the end of the world' i.e. they're all networked so I can download Babypips attachments on the other two workstations BUT I'd like to know the CAUSE of the problem (I have that kind of mind of course)!!! LOL!!!

Any ideas???

Regards,

Dale.

hi Dale get rid of interenet explorer get firefox its free.

[dpaterso]

Thanks for the input.

I'd not want to do that though. Although I SUSPECT IE8 (or any of it's MANY updates and patches): it does not account for the fact that I have no problem downloading attachments from FF. Go figure.

Regards,

Dale.

[TalonD]

Hey Dale, I recently started having a problem with downloading zip filles on here, with internet explorer. but I tried it with google's Chrome and they download fine. I don't like Chrome, it's a memory hog, and no matter how many reinstalls of firefox I do, it still is buggy. So I use IE normally, but will use chrome just to download zips which isn't very often.

[Pip Sampras]

Greetings everyone,

Thanks to dpaterso for pointing this out, and also thanks to the others for feedback. I've forwarded this problem to our tech folks. Once we get it figured out, I'll post back here. Thanks again!

Pip Sampras

[Pip Sampras]

Originally Posted by dpaterso

Thanks for the input.

I'd not want to do that though. Although I SUSPECT IE8 (or any of it's MANY updates and patches): it does not account for the fact that I have no problem downloading attachments from FF. Go figure.

Regards,

Dale.

Greetings Dale,

Could you provide an example zip file you were having problems with. The tech team did a quick test and weren't able to reproduce the problem. They are running Windows 7, not Windows XP, with IE 8. That would help immensely.

Thanks!

Pip Sampras

[dpaterso]

Hello,

Thanks for the response.

It does not matter which .zip file I download I get the error. Here is a link to a .zip file that I myself posted some time back (a chart of the S&P 500 about a third of the way down the page):

Trading Systems in 'New Concepts In Technical Trading Systems' by J. Welles Wilder

If I myself download it then same problem.

One thing I've not as yet tried is to UPLOAD a .zip file myself and then download it again and see what happens. I'm going to do that RIGHT now.

Regards,

Dale.

[dpaterso]

Here is my test (see post above).

Dale.

Edit:

I created the .zip file and then uploaded it. I can open the original on my workstation no problem but I cannot download the file that I've just uploaded (well I guess I should say that I CAN download it but when trying to openg it WinZip informs me that it's not a valid archive file). Very odd (and when I was in the IT Business it's the kind of problem that I would probably have 'sat with' for DAYS on end JUST to find out WHAT the problem is)!!! LOL!!!

It's not too serious (well not to me anyway) i.e. I have other workstations that I can use to download .zip attachments (they work fine). As I say: the only difference between my 'main' workstation and the others is that this is a new 'clean' installation of Windows XP with IE8 installed (the others are also 'clean' installations of Windows XP at this time but NO IE8 installed only IE6 installed with all the Microsoft updates installed). It's just one of those 'interesting' IT problems is all. The MAIN and probably ONLY reason that I resort to using WinZip when uploading attachments is because sometimes my charts are quite large and if I don't put them in an archive then they get resized by the forum software and in most cases they then become unreadable (you cannot see any 'fine' detail).

[petefader]

nope, that link didnt work for me. I too recently uploaded a zip, and the only person who it worked for was on Safari (mac).

[dpaterso]

Ok, well, 'there's your problem' (ever watch Mythbusters)??? LOL!!!

At least: I THINK this is the problem (and if not it's probably a good place to start).

I spent a bit of time on this issue this morning and it turns out that this is not a new issue at all i.e. I've now seen reports detailing this very issue dated as early as 2007 when the issue first became apparent with IE7. It would appear that it has something to do with PHP, a thing called 'zlib compression', and IE download requests.

From what I gather: the default zlib compression ON THE SITE can cause a WinZip file to get compressed TWICE using the zlib compression.

Here is an exact quote that I found:

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.

Here is a link:

http://moodle.org/mod/forum/discuss....&parent=599707

(Just continue to log in as a guest and you'll have access to the thread).

And another one:

[IE] IE7 corrupting ZIP files. Firefox does not. Page 2 - dslreports.com

Alternatively: use Google and search for some key phrases from the above quote and you'll find many references to this issue.

What I DO NOT understand is that it appears to affect various different combinations of IE7/IE8/XP/XP Home/Vista etc. It does not seem to affect ALL users ALL of the time.

From what I gather it's a 'server side' fix.

Just trying to help is all (and thinking that maybe I should go back into IT) LOL!!!

Regards,

Dale.

Edit:

Just for interest sake I tried the other 'fix' detailed in one of the links above i.e. disabling HTTP 1.1. That solves the problem with the downloading of .zip files but with HTTP 1.1 disabled I'm then being notified by IE8 that there are 'Errors on the page'.