Hello
As i know, windows servers have phpmyadmin installed
if you know how to enter to phpmyadmin in your windows server (check help.hostony.com) go to it and then:
go to "export" and choose the databases you want to export the dump file
and choose the exportation options you like more.
(sql, csv, etc)
I recommend you to export the database as a SQL file, Add options like ADD DROP DATABASES, etc.
Try it
also you can search in the forum, there is a lot of posts with phpmyadmin related issues, the most related to backups.