In this scenario, the app will show a toast notification which includes images which are hosted on a web service.

Toasts can use images downloaded from the Internet. The application must have "Internet Capability" specified in its manifest to do so.

Specify the URL of an image (note that the image here may not appear exactly the same as on the toast)...

...and press one of the buttons below to see an example of that toast:

Template	Description
toastImageAndText01	A large image and a single string wrapped across three lines of text
toastImageAndText02	A large image, one string of bold text, and one string of regular text wrapped across two lines
toastImageAndText03	A large image, one string of bold text wrapped across two lines, and a string of regular text on the third line
toastImageAndText04	A large image, one string of bold text on the first line, and two strings of regular text on the second and third lines

Since notifications are just XML, you can create them in many different ways. Above, the NotificationsExtensions library is used. You can also create notifications with strings:
toastImageAndText01 toastImageAndText02 toastImageAndText03 toastImageAndText04

When you display a toast, its XML will appear here.