How to Include Contributed Modules in Automated Install

Hi all,

I am currently using PostgreSQL 8.0.2 on Windows 2003.

I want to do a silent install via a .bat file. My command line currently
looks like this:

msiexec /i %INSTALL%\postgresql-8.0-int.msi /qb ADDLOCAL=server,psql
INTERNALLAUNCH=1 SERVICEACCOUNT=%svcacct% SERVICEPASSWORD=%svcpasswd%
SUPERUSER=%superacct% SUPERPASSWORD=%PGPASSWORD% BASEDIR=%PGRESQLDB% /l*v
%PGRESQLDB%\install.log

QUESTION: I want to include contributed modules 'PGStatTuple',
'FuzzyStringMatch', and 'DBsize' in the automated install. Although
including these modules can be done checked off on a 'manual install', don't
know how to do it on a silent install. The instructions at the following
site do not say how to install these modules:
http://pginstaller.projects.postgresql.org/silent.html

Do I need to implement the contributed modules via SQL statements or some
other way?