After uninstalling trial version, I installed Flash Builder 4 Standalone version with new serial key and that works fine, but after that I installed Flash Builder 4 Eclipse plugin and that didnt work. I checked the asm3.log file and it had message "SLCoreService: Query license: type = 1, duration = 60 days, remaining = expired.".
Why FB4 Eclipse plugin reference to trial key and not valid key?
Flash Builder 4 Standalone license key does not work for Flash Builder 4 Eclipse plugin? Do I need new license for FB4 Eclipse plugin?
Why it work for Flash Builder 4 Standalone version and not for Flash Builder 4 Eclipse plugin?
The same license key will work for both FB4 Standalone and FB4 Plug-in.
In order to get out of trial mode for FB4 Plug-in, launch the bundled copy of eclipse, and switch to the Flash perspective. This should trigger the Activation dialog, where you can enter your SN.