Forbidden file and folder names on Windows

Ingat jangan kasih nama folder dengan nama2 berikut :
CON
PRN
AUX
CLOCK$ (NT and older)
NUL
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
LPT1
LPT2
LPT3
LPT4
LPT5
LPT6
LPT7
LPT8
LPT9

Forbidden file and folder names on

 Windows
Here’s an interesting experiment. On a Windows desktop,
 right-click on the desktop, and create a new Folder. Then, try 
renaming it ‘aux’. Can’t do it, right? There are certain restricted 
words that cannot be used to name folders or files, even though 
they use regular characters. You can’t even name it, say, ‘aux.test’. 
I came across this bug when editing files in CVS that were sourced 
on a Linux machine. I checked out the repository, but got errors for a 
folder named ‘aux’. I ended up doing work on a Linux machine to get 
around this, as there would be no way I would be able to work on the 
files there from Windows.
It’s not impossible to create a file with that name, however. You just 
need to break out the old command line. From a Windows XP box, 
open up a command window (Start->Run, type cmd) and try:

md \\.\c:\aux

Congratulations, you’ve just created a folder named ‘aux’! You can 
even browse to it in Windows Explorer. To break down what the above 
does: the md stands for “make directory”. Specifying \.c:aux 
means (in UNC format) on the local machine, volume C:, folder aux.
However, you still can’t delete it from Windows Explorer. To do that, 
you have to go back to the shell:

 rd \\.\c:\aux

Aside from wowing your neighbors with your random geek 
knowledge, is there a practical use for this information? While 
I can’t think of any, it’s good to know to avoidusing these, if doing 
cross-platform development. Do not use these names on a file on 
a Linux machine if they are going to be opened or edited by 
Windows users! This includes files and directories with those names 
but with an extension, such as aux.txt.

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