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	Class	Description
	Environment	Environment provides informations for the local environment.
	Protocols	Protocols Enumeration
	Timespan	Utils to store "period of time" in seconds
	URL	Basic URL utility class.
	UserAgent	This class constructs an user agent string for Flash.
	Variables	The Variables class.
	Version	A basic Version class which is composed by four fields: major, minor, build and revision.