[GENERAL] Service Account password

Is it possible to change the Service Account password for Service Account name postgres and if so how? Windows XP Home SP2 PostgreSQL v8.3.0 -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription:

[GENERAL] Service account not showing

I installed PostgreSQL on my Windows XP Home PC (at home) but when I look under the Control Panel, User accounts, the special postgres user name is not listed. However, using net user postgres shows the following:- User namepostgres Full Namepostgres