I used to make Flex 3 applications until yesterday. Today I can't and I don't know why (was it Windows Update!?). I have the latest Flash Player Debug version installed. If I launch IE normally, I can see any type of flash content on the web:
This is the error I get when I launch or try to debug any application made in Flex 3:
I can't use that IE instance to view any kind of Flash content on the web:
I've used Google and I found some results in the Adobe forums from people who had the same problem none of the solutions apply to my case ._____.
I can use Google Chrome to preview my Flex applications but the debugger doesn't work >___>
It looks like my problem was that I had 2 versions of IE. The 32 bits version works and the 64 bits don't. That explains why different instances of IE got two distinct results. I just had to go to Flex preferences -> General -> Web Browser and add the 32 bits version of IE to the list of external browsers and use it.