Below are some notes I made for myself when I updated the player last time. You might need them (and they might've changed since I did it last) as this info is a bit hard to find. Hopefully, this will help you.

John B.
1. Go to
www.garritan.com and log in
2. Click Contact Us at top of page
3. Choose Garritan Drop Down @ middle of page
4. Click on Current Versions link
5. Click Support tab @ top of page.
6. Choose Product Updates towards bottom of page
7. Choose Product (Garritan) from dropdown*
8. Choose Platform (Windows) from dropdown*
9. Click Sort By Date & click Search*
10. Choose latest version of the Aria Player to download
*Note-In Product Update area there are two other dropdown boxes, Version & Catagory, that do not have available options. Disregard those.