The byte offset from which to resume the upload or download.
This property specifies the byte offset from which to resume an automatic multipart upload initiated by CreateObject, or a download initiated by GetObject. Refer to those methods' documentation for more information about resuming uploads and downloads.
When uploading from a stream, the class will always seek forward in the stream if the value of StartByte is greater than 0 when CreateObject is called. Keep this in mind when resuming interrupted object uploads.
Note: This property is automatically reset to 0 anytime ServiceProvider changes.
This property is not available at design time.