Hi, I’m Nicole, I’ll be happy to help you out today.
Unfortunately, MSN Messenger was officially discontinued by Microsoft in 2014, and the service and its data have since been deactivated and deleted. This means that it is not possible to access your old MSN Messenger contacts or messages directly from the service.
However, if you had previously exported your contacts from MSN Messenger, or if you had saved them elsewhere, such as in a file or in another email program, you may still be able to access them.
I hope I've answered your query in a satisfactory way for you.
Kind regards.