Y this problem in Windows

[Ashok_17]

Try to create a folder in Windows with either of these names-- "con" or
"nul" or "Aux".
Windows will not let u create .....

Y?

[Jay Bollyn · Accepted solution]

Hi Ashok,

NUL, AUX, CON, COM1-4, LPT1-3, and PRN
are reserved words used for DOS Devices

CON - Console; combination of keyboard and screen to handle input and output
AUX or COM1 - First serial communication port
COMn - Second, Third, ... communication port
LPT1 or PRN - First parallel port
NUL - Dummy port (null device)

:-) Jay