Although I've never tried to use a Flex SWC in Flash Pro or a Flash Pro SWC in Flex; I was under the impression that the SWC File format was different for Flex and Flash Professional; therefore you cannot use a SWC from one with the other.
You'll want to look into the Flex Component Kit for Flash: http://www.adobe.com/cfusion/exchange/index.cfm?event=extensionDetail&loc=en_us&extid=1273018 --- In flexcoders@yahoogroups.com, "Slackware" <selecter...@...> wrote: > > Is that possible? Whenever I add a SWC library created on Flash CS4, I lose > the design view on Flash Builder Beta. > Could anyone confirm this? > > Many Thanks. >