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29.8. Summary
Using SharedObject for locally shared objects is painless in ActionScript 3.0.
SharedObjects give you a decent amount of storage.
Local SharedObjects are comparable to browser cookies but have more persistence, security, and size, and they require no bridge to JavaScript.
Storing information on a server is, in most cases, more secure and more appropriate for media or other large data.
SharedObjects are tied to an account on a computer rather than an actual user.
You can share information in a SharedObject between SWFs in different locations on the same domain by constructing an appropriate localPath argument.
You can create local shared objects that are used only in SWFs hosted from secure connections.
The user ultimately has control over the available size for shared objects.
When requesting more data than is available, the user is prompted.
You can find out whether prompts to expand the available SharedObject size were successful.
You can store custom classes in SharedObject instances with registerClassAlias() and, if necessary, IExternalizable.
