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Expires hint. Timestamp indicating when the cache entry will expire. The property is returned by Open() as a VXIInteger representing an ANSI/ISO time_t integer, representing the number of seconds since Jan 1, 1970). If the entry is already expired, a VXIInteger of value 0 is returned. This number only indicates this is the time where the request has to be made again to the remote web server. This doesn't necessarily mean that there will be new data after this time (For example, having the property INET_INFO_VALIDATOR_STRONG with an EXPIRES_HINT of 0, means the URL has to be revalidated but does not imply that the data will change.
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