1)   Virtual Drive Creator 2.1.3
Create Virtual Drives from long paths, it's easy! Type or browse to the full path, choose a drive letter and Click [Add Virtual Drive]. Make CD-ROMs obsolete, copy the contents of the CD-ROM to your Hard Drive and run the CD from there.

 2)   SubstDrive 1.2
API for work with substitution device (see DOS command "subst"). Win9x ONLY. For WinNT and Win2000 use native API call.