SET+Setting Operating Parameters
     Inserts specified names (strings) into the command 
processor's environment.
    VERSION
          PC-DOS 2.0+
	  MS-DOS equivalent: SET (2.0+)
    TYPE
          Internal
    SYNTAX
	  SET [name = [parameter]]
    OPTIONS
	  name	       Specifies a variable.
	  [parameter]  Specifies a new value for the environment.
     SET is used to pass arguments to application programs or to 
batch files that look into the DOS environment for operating 
parameters.
    EXAMPLES
	  SET FIL = \PROGFIL
instructs DOS to look in the \PROGFIL directory when an 
application program interrogates the environment for FIL.
	  SET
displays the names that have been set in the environment, such as 
the path and the prompt.
	  SET NAME = HAROLD
allows you to call the value assigned to NAME from a batch file. 
In the batch file, you must enclose the variable NAME in percent 
signs, which indicate to DOS that a variable is being used rather 
than a command-line argument (see Appendix A for more information 
about batch files and using variables in them). To call the value 
assigned to NAME- -for example, to change to Harold's directory- 
-you would enter the line in the batch file as
	  CD \%NAME%
If ECHO were on, you would see
	  CD \HAROLD
when this line was executed.
    UNDO
     To remove a string from the environment, you merely repeat 
the SET command using the name parameter without specifying any
other parameter. For example, to remove NAME = HAROLD from the 
environment, simply enter
	  SET Name =
    NOTE
     All names are converted to uppercase in the environment, but 
parameters will remain uppercase and lowercase as you enter them. 
The SET command is useful for allowing application programs or 
batch files to be written generically while you assign values 
dynamically in the course of a program or batch file.
     One of the strings placed in the environment automatically 
is the COMSPEC= parameter, which describes the path that DOS uses 
to reload the command processor when required. To use a command 
processor other than COMMAND.COM, you need to use the COMSPEC= 
parameter in the SET command. Always use the drive letter in the 
path used to describe the location of COMMAND.COM or your own 
command processor.
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    SEE ALSO
          APPEND Command
          AUTOEXEC.BAT File
          Batch Files
          BREAK Command
          COMMAND Command
          CTTY Command
          EXE2BIN Command
          KEYB Command
	  KEYBxx Command
          PROMPT Command