JSON and VB.net

I've got a small utility I use to communicate with Yahoo's APIs. Their servers return all the re开发者_开发百科sponses in JSON.

Is there an easy way to parse this into its base form when you don't necessarily know what will be in the response?

{
    "sessionId": "A.bpAsPs3RPYF0nUuAnCtuEUJMOmDDHbjZG5", 
    "primaryLoginId": "prometheussoft", 
    "displayInfo": {
        "avatarPreference": "2", 
        "checksum": "-1484747745"
    }, 
    "server": "rcore1.messenger.yahooapis.com", 
    "notifyServer": "rproxy1.messenger.yahooapis.com", 
    "constants": {
        "presenceSubscriptionsMaxPerRequest": 60
    }
}

you can deserialize it to a dictionary with string parsing, any values that are objects can be done the same way with a nested dictionary.

However to get typing on the values you will need to at least know what is expected for each property