You can't. If your Flex code is running [in a browser]; then by definition, Flash Player must be installed. If Flash Player doesn't exist, then there is no way to ever run your code [in a browser].
How can we determine using swfobject. If we run our application in a borwser and if the doesn't have flash installed the application directly
The application will automatically prompt the user if appropriate version of FlashPlayer is not installed.
What do you wan't to achieve by doing this?
Europe, Middle East and Africa