Do I have to install Outflash to both the desktop and web applications?

No, not at all. Which ever method you choose to install the Outflash plugin and associate with your email address. This will enable Outflash in the desktop, and web Outlook applications. This is one of the benefits of using Outflash.

How to install using Outlook desktop application

We are currently putting together our installation guide using the Outlook desktop client. Please refer to the 'How to install using Outlook.com online' FAQ to get up and running with Outflash.

How to install using Outlook.com online

The quickest and easiest way to get up and running with Outflash is to use Outlook.com and link the plugin to your email account. This guide will run your through the process of adding the plugin to your account, step