How can we use comapctformatter instead of binary formatter

Sir,
I have just found that there is no runtime. serilization for smartdevice
application.then how can this piece of code be transformed for pocket pc.
///////////////////////////////////////////////////////////////////////////////////////////////////////
Pattern result;
try
{
IFormatter binFmt = new BinaryFormatter();
Stream s = File.Open(file, FileMode.Open);
result =( Pattern)binFmt.Deserialize(s);
s.Close();
}

were Pattern is a class.
///////////////////////////////////////////////////////////////////////////////////////////////


i tried to use compact formatter as refered tome in the forum, but it gave
me errors, can any one tellme how can we use it or any other alternative.

How can this piece of code be written for pocket pc in .net 2003.

Regards

Naveen