To install web application (phpbb) on your website from Plesk please follow the following steps:-
1) Login to Plesk 9.x control panel.
2) Click on "Domains"
3) Select the "domain" on which you want to install the application.
4) Click on "Web Application".
.
5) Click on "Install Web Application".
6) Enter the application you want to install in the search bar and then click on install
infront of the application that you want to install.
7) Accept the license agreement and click on "Next" to proceed further.
8) Enter the required crendtials required to install the application and then click on "Install".
