User`s manual

Distribution of Applications 127
PCIS-DASK
Automatic Installers
8.2 Automatic Installers
Several programming environments provide setups or distribution
kit tools that automatically create an installation program so that it
can be conveniently installed from one computer to another. For
the application to function properly, this tool must locate and
include the required control files and supporting libraries in the
installation program that it creates.
Some tools, such as the Visual Basic 5 Setup Wizard, uses
dependency files to determine which libraries are required by a VB
application. Some setup tools may not automatically recognize
which files are required by a program, but they provide an option
to add additional files to the installation program. In this case, ver-
ify that all the necessary files described in the previous section are
included. The user should also check if the resulting installation
program does not copy older versions of a file over a newer ver-
sion on the target computer.
If the programming environment does not provide a tool or wizard
for building an installation program, third-party tools such as
InstallShield may be used instead. Some programming environ-
ments provide simplified or trial versions of third-party installer cre-
ation tools on their installation CDs.