No Can Do

coninwindowsnono - no can do


Why is this?

In MS-DOS, several special "device files" were available to aid in performing certain tasks, such as clearing the screen or deleting extraneous output from a program. In order to maintain backwards-compatibility, all versions of Windows up to and including Windows Vista will refuse to allow you to create a file with these "reserved" device file names. The following file names are all reserved:

CON, PRN, AUX, NUL, COM0, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT0, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9

CON, incidentally, was originally a device file used to capture whatever was printed onscreen.

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Comments

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  • 3

    hmmm....

    khan - no can do

    Reply
  • 2

    URGH it's true

    • peace
    • March 16, 2010, 3:19 am
    Reply
  • 1

    ok?

    Reply
  • 1

    Don't you mean "No CON do"?

    BAhahahaha!

    Reply
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