By default db4o doesn't store static fields. With this setting you force db4o to also store the value of the static fields. Note that only reference types are stored. Value-types like ints, longs etc are not persisted.
In general you shouldn't store static fields, because this can lead to unexpected behaviors. It's mostly useful for enumeration-classes. See "Storing Static Fields"
IEmbeddedConfiguration configuration = Db4oEmbedded.NewConfiguration(); configuration.Common.ObjectClass(typeof (Person)).PersistStaticFieldValues();
Dim configuration As IEmbeddedConfiguration = Db4oEmbedded.NewConfiguration() configuration.Common.ObjectClass(GetType(Person)).PersistStaticFieldValues()