PATH

Indicates which directories MS-DOS should search for executable 
files.

Note: PATH information is saved in the environment variable 
named "PATH". In Windows 9x or Windows NT, there is an enhanced 
PATH command usage: PATH <path1>;<path2>;%path% . Use this 
format to append the paths where you want MS-DOS to search for 
executable files to the current path setting. You should specify 
a "PATH" in the full path format, that is <drive:><path>, or you 
will see MS-DOS searching for the wrong path if you are at a 
different location. Also, in Windows 9x, it is recommended that you use 
short filenames instead of long ones for the paths. This will save much 
environment space.

For more information, please refer to MS-DOS Help or Windows NT 
command line command help.