Make Folder CON, LPT1..LPT9,COM1..COM9,NUL, AUX in DOS

Berikut adalah nama-nama yang tidak dapat dibuat menjadi nama sebuah Folder:

con, con.* -> the console
prn, prn.* -> the default printer, as a character device
aux, aux.* -> the default serial terminal, as a character device
lpt1, lpt2, lpt3, lpt4, lpt5, lpt6, lpt7, lpt8, lpt9 -> the parallel ports, as character devices
lpt1.*, lpt2.*, lpt3.*, lpt4.*, lpt5.*, lpt6.*, lpt7.*, lpt8.*, lpt9.*
com1, com2, com3, com4, com5, com6, com7, com8, com9 -> the serial ports, as character devices
com1.*, com2.*, com3.*, com4.*, com5.*, com6.*, com7.*, com8.*, com9.*
nul, nul.* -> the NUL or "waste bit bucket" or "black hole for bits" or "/dev/null" device

Untuk membuat Folder tersebut gunakan langkah-langkah berikut :

Langkah 1: Masuk dalam sistem Operasi DOS/command prompt
Langkah 2: Ketikkan perintahini didalam Dos sebagai contoh di drive E: ----> e:\> "mkdir \\.\e:\con"
Langkah 3: verify by typing "dir \\.\e:\con"
Langkah 4: delete the file or folder "rmdir \\.\e:\con"