The fsreqCommand type exposes the following members.
Indicates if this command should be logged to the database. The command must be of a type that supports logging to the database in order to take effect. Currently the commands supporting this option are: TFSCut
A GUID identifying this particular XML command. If a command fails due to a communication failure the client has no way of knowing if it has been processed. Each command that makes changes (as opposed to just retrieving data) will check the CommandGUID against the GUIDs that have already been processed. If the GUID has already been processed then it will not be re-processed and instead return with an error. This allows the client to saftely re-try a failed command without risking unintended changes.