any body here using windows xp as operating system -must readddd

In windows the folder name and the special system variables are sharing the same interface, so when you create folder with a system variable name it will consider that folder already exist!! these special system variables are avaiable irrespective of path. however we can create con folder with the help of DOS and other tricks also.

im useing xp but nothing happen when i did what you said to do.what will happen?ill try again later

CON is a reserved word and we cannot have folders with reserved words as their names . And this type of topics have been discussed many times on this site . Moreover it seems that there is a myth that Bill Gates was unable to explain the reason . It is a misconception . There are few other real bugs which are not solvable at present .