If you are registered with the online English course (subscription):

The English course of ABA English uses a Microsoft technology called ActiveX and therefore can only be used with Internet Explorer. Any version of Internet Explorer is good to work with the distance english course, however we recommend Internet Explorer v6.

If you purchased our English software (download mode):

You do not need to connect to the internet in order to learn English with our course. Only to download the program that you have acquired.