create a folder with name "com1" or "con" etc

Please try to create a folder named "CON" or COM1 or COM2 etc.
You cant do it here is a trick to do this:
create a new folder rename it with "com1" and after com1 type ALT+0160 with num pad.
press enter your folder is of name com1.you can create folder of any restricted name.

concept:

windows system had many reserved words like con,com1,com2 for ports etc.If you create folder with that name there must be conflict so you can not make folder with these name.

what this trick do.this trick put an hidden char of UNICODE ALT+0160 at the end of folder name so its not "com1" its "com1 ".(a blank after com1 ).
note : try start menu > accessories>system tools>char map and find equivalent character of ALT+0160