There should be a ReadMe.txt
file that came with the download of IE-Spyad. Instead of using my words I'll show a partial
quote of Eric Howe's explanation for the use of the choice commands. There is more pertinant info contained inside that readme.txt file in regards to IE-Spyad and well worth the read IMHO.
Originally Posted by Eric Howe
The new IE-SPYAD Installer/Uninstaller, INSTALL.BAT, makes use of CHOICE.COM, a DOS utility which shipped with every version of MS DOS 6.0 and above as well as all versions of Win9x, including Windows 95, Windows 98, and Windows Me. Windows NT 4.0, Windows 2000, and Windows XP do not, however, include a copy of this file. Moreover, CHOICE.COM apparently has compatibility issues with the Windows XP command shell interpreter.