Creating my own SWC file using Flex 4?

Is it possible to create and compile my own .SWC file using only Flex 4 / 开发者_如何转开发Flash Builder 4? I don't have Flash Professional installed and based on some people I've asked, it is made in Flash Professional. How can I make my own .SWC file if I'm going to use Flex 4 / Flash Builder 4 instead?

---

Yes you can.

In Flash Builder , create a new "Flex Library Project". Technically, the name is wrong because you can create a SWC file without any dependency to the Flex framework.