TABLE OF CONTENTS Windows XP can use nearly all of the traditional MS-DOS functions, so knowing something about DOS is still useful. Table B.1 contains a partial list of DOS functions. The ones I find most useful are in boldface. For more information on any specific command, type HELP followed by the command name while at the operating system command prompt. You can get to the operating system command prompt from the AutoCAD command line by typing SHELL 
. You can also get information about these commands from the Windows Help system. Type Command-line reference A-Z into the Search window of the Windows Help dialog box, available at Start ? Help ? Search.
| SELECTED DOS FUNCTIONS | PURPOSE |
|---|---|
| ASSOC | Displays or modifies file extension associations. |
| AT | Schedules commands and programs to run on a computer. |
| ATTRIB | Displays or changes file attributes. |
| BREAK | Sets or clears extended Ctrl-C checking. |
| CALL | Calls one batch program from another. |
| CD | Displays the name of or changes the current directory. |
| CHCP | Displays or sets the active code page number. |
| CHDIR | Displays the name of or changes the current directory. |
| CHKDSK | Checks a disk, and displays a status report. With the /f switch, it may fix errors it finds on any of those old floppy disks you still need to use periodically. |
| CHKNTFS | Displays or modifies the checking of the disk at boot... |
