The software in this directory, the Aurora Editor, will edit up to 1GB size 
files, and is very useful for the larger ADC catalogs which often do not 
fit into the common editors. Aurora works under MS-DOS and Windows and is
Shareware. This means that the use of this software carries the obligation to
register and pay the registration fee as outlined in the documentation 
accompanying the software. 

The software can be extracted using pkzip.