You mean you need to install dragon add-in for office 365 right? if yes then you need to open ms office word go to file and click options, you will get popup on screen on left side you will have option for add-in click that and from there you can checkmark netspeak add-in?

However, if you need to install the Dragon add-in for Office 365, you can follow these general steps:

1. Open Microsoft Office Word.
2. Click on the “File” menu at the top left corner of the screen.
3. Click on “Options” from the list of menu items.
4. In the “Options” window, click on “Add-ins” in the left-hand column.
5. Click on the “Manage” drop-down list at the bottom of the window and select “COM Add-ins” from the list.
6. Click the “Go” button next to the drop-down list.
7. Check the box next to the Dragon add-in to enable it.
8. Click “OK” to close the add-in window and return to Word.

These steps may vary slightly depending on the version of Microsoft Office and the Dragon add-in you are using. If you have any issues with this process or need further assistance, I suggest consulting the Dragon documentation or contacting their support team.