Problems using serializing

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C#2.0

C#

Hi,

I have some data-classes in an assembly (.exe), that should be moved to another assembly (dll).
The objects are (de)serialized with BinaryFormatter.

As long as the classes are located in the original assembly everything works fine but when they are moved to the DLL deserializing of the old data fails.
My thought was that the objects cannot be found since the data-files contain links to the original assembly.

I implemented a custom serialization-binder-class that changes the assembly-name to the new assembly and replaces the original assembly-name in typename to the new assembly name.

The serialization still fails, probably because some types cannot be found although the names were changed. Unfortunately there are some generic dictionaries and lists inside these objects.

Is there a way to deserialize the "old files" to "new objects" without losing data?

Thanks for help!

regards

J.