The command in several MS-DOS Systems which is used by Indians (Tech Support) to scare you that you have a Virus (wirus) on your Computer. It actually lists all the dictionarys that are saved on your Computer.
"Helo sir, I hav to opn the comand prmpt to shw u wirus install."
* opens cmd.exe *
* @echo off
* Color 2*
* tree *
"U see, ther is bad wirus install."
"U Need to instal antivirlus from India Tech SUpport."