I like to copy important installation CDs to a server so when I set up a new machine it is easy for me to install them again.  In some cases, such as the software for my Canon EOS 20D DSLR, the setup program on the CD expects to be at the root of the drive.  This is very inconvenient when I am trying to install the software on a new machine (as I did today on Windows 7).

Typically I resort to running the subst command from a command prompt window.  This command works perfectly well, but is not very convenient.  I always forget the syntax and I have to type in most of the path.

Today I found a solution to this problem:  Visual Subst by ntwind software.  From the product page:

Visual Subst is a small tool that allows you to associate the most accessed directories with virtual drives.  It uses the same API similar to the consol ‘subst’ utility, but makes it easier to create and remove virtual drives in a GUI way.

Terrific utility!  The only thing it is missing is to add an entry to the context menu in Windows Explorer.  That would make it complete.