>From http://labs.adobe.com/technologies/flashbuilder4/?tabID=details#tabTop
How long can I use Flash Builder 4 beta 2? The beta 2 release of Flash Builder 4 will run for 60 days from installation before timing out. You may continue your use of beta 2 after the first 60 days by entering a valid Flash Builder 4 extension serial number. All current Flex Builder 3 customers will be emailed an extension serial number. If you own a copy of Flex Builder 3 and did not receive an email with an extension serial number, you may request one online by entering your valid Flex Builder 3 serial number. Please visit http://www.adobe.com/go/flashbuilderextension to request an extension serial number. If you don’t yet own Flex Builder 3 and want to continue using the beta you will need to purchase a Flex Builder 3 license. By adding a 12 month maintenance plan with your purchase, you will receive a free-of-charge copy of Flash Builder 4 when it ships. 2010/1/19 markflex2007 <markflex2...@yahoo.com>: > I try to use Flex Builder 3 sn,but it can not be accept. > > Thanks > > > > ------------------------------------ > > -- > Flexcoders Mailing List > FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > Alternative FAQ location: > https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links > > > > ------------------------------------ -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: flexcoders-dig...@yahoogroups.com flexcoders-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: flexcoders-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/