Hi,
it might be interesting:
I’ve explored that if you have ESET Smart Security 4 64bit (aka NOD32) installed in the system, then FileReference class (for AS2) doesn’t show the upload progress of a file to server.
You can try it yourself: http://darts-design.com/upload/ (for example, with trial version of NOD32).
…or just watch the video: http://www.screenr.com/om5
I checked this only on Windows 7 x64 and Actionscript 2. And didn’t try other stuff.
