Mount points are a form of symbolic link specific to directories on NTFS that
were introduced in Windows 2000. They provide a mechanism for organizing
disk volumes that is more flexible than the use of global names (like drive
letters). A mount point is implemented as a symbolic link with associated
data that contains the true volume name. Ultimately, mount points will
supplant drive letters completely, but there will be a long transition due to
the dependence of many applications on the drive-letter scheme.