Adobe® Flex™ Builder 3 Pro for Education.

Ad0be is providing free serials for flex builder for educational purpose

To receive the product, you must upload a valid proof of eligibility to get the serial numbers to activate the product. Valid proofs of eligibility are:

   1. a student ID showing current enrollment,
   2. a Faculty ID showing current employment
   3. an employee ID showing current employment, or
   4. a letter on an educational institution letterhead stating that you are either a current student,        a current faculty member or a current employee of the institution.

On the page that opens, accept the terms and click "Student"

On the next page, fill in all fields. There is a special field in this form: Student ID.They ask for a copy of a proof of registration or any document to prove their academic home. 
After uploading the image or PDF, click submit.

Now, Adobe will evaluate and, if approved, will send the serial via email within a maximum of 3 days.

To get the serial, Register with Adobe (the registration is free)

https://freeriatools.adobe.com/flex/

I got this piece of information from flex group and think of just spreading this through my blog so that community can take advantage of this.

Thanks,

Shaleen Jain