How to update or install PEAR Plugins using XAMPP

Assumtions

You have the latest XAMPP installer downloaded and installed.

You have Installed XAMPP to C:\Users\User\XAMPP directory

The Command Prompt is your best friend

We’re going to upgrade HTML_Common and Install HTML_QuickForm_advmultiselect

cd\Users\user\xampp\php
pear upgrade HTML_Common
pear install HTML_QuickForm_advmultiselect

That’s all there is to it!