PATH
Displays or sets a search path for executable files.

PATH [[drive:]path[;...][;%PATH%]
PATH ;

Type PATH ; to clear all search-path settings and direct cmd.exe to search
only in the current directory.
Type PATH without parameters to display the current path.
Including %PATH% in the new path setting causes the old path to be
appended to the new setting.

C:\Documents and Settings\Danny Lumb>help POPD
Changes to the directory stored by the PUSHD command.

POPD


If Command Extensions are enabled the POPD command will delete
any temporary drive letter created by PUSHD when you POPD that
drive off the pushed directory stack.