installer

    A utility program to ease the
   installation of another, probably larger, application.  It
   is also possible for hardware to have an installer accompany
   it, to install any low level device drivers required.

   The installer commonly asks the user to enter desired
   configuration options for the main program or hardware, and
   sets up various initialisation files accordingly, as well as
   copying the main program to a hard disc.

   Some badly designed operating systems require applications to
   provide an uninstaller because of the number of different
   files modified or created during the installation process.

   (1998-02-09)