	Name	Description
	Add	Adds a new header containing the specified name and value.
	AddRange	Adds one or more headers
	AllValues	Returns all values of the named header in a single string, delimited by commas
	AssignFromString
	ByteCount	Get byte count of this HTTP header instance. NOTE: This method should've been abstract.
	Count	Number of HTTP headers
	CountOf	Returns the count of instances of the named header
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Exists	Determines if the Headers collection contains a header of the specified name, with any value.
	ExistsAndContains	Determines if the Headers collection contains one or more headers of the specified name, and sHeaderValue is part of one of those Headers' value.
	ExistsAndEquals	Determines if the Headers collection contains a header of the specified name, and sHeaderValue=Header's value. Similar to a case-insensitive version of: headers[sHeaderName]==sHeaderValue, although it checks all instances of the named header.
	ExistsAny	Determines if the Headers collection contains any header from the specified list, with any value.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FindAll	Returns all instances of the named header
	FreeReaderLock
	FreeWriterLock	If you get the Writer lock, Free it ASAP or you're going to hang or deadlock the Session
	GetEnumerator	Enumerator for HTTPHeader storage collection
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetReaderLock	Get the Reader Lock if you plan to enumerate the Storage collection.
	GetTokenValue	Returns the Value from a token in the header. Correctly handles double-quoted strings. Requires semicolon for delimiting tokens Limitation: FAILS if semicolon is in token's value, even if quoted. FAILS in the case of crazy headers, e.g. Header: Blah="SoughtToken=Blah" SoughtToken=MissedMe We really need a "proper" header parser
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetWriterLock	Get the Writer Lock if you plan to change the Storage collection. NB: You only need this lock if you plan to change the collection itself; you can party on the items in the collection if you like without locking.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Remove(String)	Removes all headers from the header collection which have the specified name.
	Remove(HTTPHeaderItem)	Removes a HTTPHeader item from the collection
	RemoveAll	Removes all HTTPHeader items from the collection
	RemoveRange	Removes all headers from the header collection which have the specified names.
	RenameHeaderItems	Renames all headers in the header collection which have the specified name.
	ToArray	Copies the Headers to a new array. Prefer this method over the enumerator to avoid cross-thread problems.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

	Name	Description
	_HeaderEncoding	Text encoding to be used when converting this header object to/from a byte array
	HTTPVersion	HTTP version (e.g. HTTP/1.1)
	storage	Storage for individual HTTPHeaderItems in this header collection NB: Using a list is important, as order can matter

	Name	Description
	ItemInt32	Indexer property. Returns HTTPHeaderItem by index. Throws Exception if index out of bounds
	ItemString	Gets or sets the value of a header. In the case of Gets, the value of the first header of that name is returned. If the header does not exist, returns null. In the case of Sets, the value of the first header of that name is updated. If the header does not exist, it is added.

Reference