SWFUpload not working in IE 8 + Flash 10 (Windows 7)

[Robbert vd Bogerd]

I've got a real big problem. In our backend-application we make
extensive use of swfupload. It has always worked perfectly and we're
really appreciating the efforts of the swfupload team. Unfortunately,
we keep getting more and more complaints from our customers, saying
the uploader doesn't work anymore in their browser (Internet
Explorer). The 'select files' button appears as an empty square, with
a red cross.

I've spent hours trying to fix this, because also on my computer it
doesn't work anymore. I'm using Windows 7 + Internet Explorer 8 +
Flash 10.2. I've disabled all of my security settings, but no effect.

So I thought, it's because of a wrong implementation, but if I go to
http://demo.swfupload.org/v220/simpledemo/, I get the same result.
Also, the demo's in the latest beta3 package seem to have the same
problem.

I hear and see a lot of people complaining about this, but can't seem
to find a proper solution or any response from the swfupload team. Is
swfupload dead? Should I choose another tool? Any other people with
the same problem?

[florgard]

We have users with the same problem (on Windows 7, IE 8 32-bit, Flash
10.1 as I recall it) and we have tried many different suggestions
found in various forums but without success. Eventually we had to
recommend the users to switch to Firefox.

[Matthew MacGibbon]

interesting enough, the demo works for us with IE 8, Windows 7, and
Flash 10.2

[이주헌]

this may be caused by that Flash under IE doesn't send cookies to server correctly.

swfupload demo page seems not to use cookie thing in upload.php so no problem.

check your site with fiddler (packet capture software) or server-side logging.