Deserializing memory stream into XML instead of structure

[RobinS]

I inherited some code that calls a web service that returns an encrypted
string. It gets decrypted into a string and then converted to a memory
stream.

MemoryStream ms = new
MemoryStream(Convert.FromBase64String(decryptedres ult));

This is then deserialized into an instance of the structure:

BinaryFormatter bf = new BinaryFormatter();

ProductDetails pd = (ProductDetails)bf.Deserialize(ms);

And then I can access the fields.

I want to remove the dependence on knowing the structure, and deserialize it
into an XML string that I can parse for fields and values. Is that possible,
and how would I go about doing that?

Thanks in advance,
RobinS.
GoldMail, Inc.