Using The SUBST Command

DocumentID: 643068
Revision Date: 29-Feb-96 8:18:49 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Solutions: The SUBST command, available after DOS 3.1, allows you to make "logical drives" on your hard disk by changing a directory name (e.g., C:\WP50\FILES\LETTERS) to a drive letter (e.g, L:). When your directory structure becomes quite long, or if you are using a program that cannot recognize directories (WordStar 3.3 is a prime example), the SUBST command can be very useful. When using the SUBST command, certain DOS commands will not work (i.e., ASSIGN, BACKUP, DISKCOMP, DISKCOPY, FORMAT, JOIN, LABEL, and RESTORE). SUBST will also not work with Network or SHAREd drives. SUBST gives an alias to a directory name; it does not actually create a new drive. DOS defaults to a maximum drive letter of E: for the SUBST command (which doesn't give you much room to work with). Using the LASTDRIVE= command in CONFIG.SYS, you can increase the number of substitutions available. The highest allowable drive letter is Z:. SUBST G:/D Removes the substitution for drive G:. SUBST Shows the current substitutions. SUBST W: C:\WP50 Gives the alias W: to the directory C:\WP50.

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