Launch application from serialized file

Question

Hi everybody,
I am in need of developing an application which stores data to serialized streams.
A good example is Microsoft word. Where you create a word document and save it on disk-once you click on the saved document, Microsoft word will automatically open and display the contents of the file.

Therefore, i also need to be able to launch my application by just clicking on the file i created through serialization using the same application.

Any suggestions to start me off or web link to useful resources is highly welcomed. Thank you