Whats the 'AE' in ' AE VISUAL FOXPRO 9.0 CD' mean?

And what is the difference between this one and the Pro version?


>>I've just spent about 10 minutes poking around the MS VFP web site looking for student pricing for VFP 9. I remember seeing it mentioned somewhere, but now that I'm ready to buy I can't find it. Any help?
>
>Check http://www.ecost.com/ecost/shop/detail.asp?dpno=525455&store=ecost&source=ECOSTPG&adcampaign=email,ECOSTPG. Price : $57.04 with free shipping.