I received an email this morning informing me the following
We're writing to let you know that as of August 29th, 2016, Dropbox will no longer support this version of Windows. You can find which devices connected to your account are running Windows XP.

Don't worry — your files and photos aren't going anywhere! But you'll need to update your computer to Windows Vista or later to access them through the Dropbox desktop application. You can find instructions on how to update your operating system on Microsoft’s website.

If you don't want to update your operating system, your files will still be available through the Dropbox website. However, on August 29th, you'll be signed out of your Dropbox account on your computer and the Dropbox desktop application will no longer be accessible.
What a pain in the butt.
I do not want to have any later version of MS, I still have programs that can only work in DOS under XP, they do not work in later versions of MS OS.