It uses the same API like console ´subst´ utility, but makes it easier to create and remove virtual drives in a GUI way.

For example, you can reduce a long path like ´C:\Program Files\Microsoft Platform SDK\Samples\Multimedia\DirectShow´ to just one letter.

This provides a quick and simple way to access most used files and directories. Visual Subst does not require installation. It is fully portable because all settings are stored into an INI-file.