subst

Associates a path with a drive letter. If used without parameters, subst displays the names of the virtual drives in effect.

Syntax

subst [<drive1>: [<drive2>:]<path>]
subst <drive1>: /d

Parameter	Description
`<drive1>:`	Specifies the virtual drive to which you want to assign a path.
`[<drive2>:]<path>`	Specifies the physical drive and path that you want to assign to a virtual drive.
/d	Deletes a substituted (virtual) drive.
/?	Displays help at the command prompt.

The following commands don't work and must not be used on drives specified in the subst command:
- chkdsk command
  
  diskcomp command
  
  diskcopy command
  
  format command
  
  label command
  
  recover command
The <drive1> parameter must be within the range that is specified by the lastdrive command. If not, subst displays the following error message: Invalid parameter - drive1:

To create a virtual drive z for the path b:\user\betty\forms, type:

subst z: b:\user\betty\forms

Instead of typing the full path, you can reach this directory by typing the letter of the virtual drive followed by a colon as follows:

z: