You can
Convert.ToBase64String()
your
byte[]
data as a work around.
Depending on your .net framework completeness on Windows Embedded you can try
fastJSON[
^], although the fast reflection does not work on the compact framework as it is not there.
There are other serializers which work on WinCE which may not be polymorphic like fastJSON (if you need it) like :
http://www.sharpserializer.com/en/index.html[
^]