Since at least 2.0: https://technet.microsoft.com/en-us/library/hh849703%28v=wps.620%29.aspx https://technet.microsoft.com/en-us/library/hh849703%28v=wps... It

Since at least 2.0: https://technet.microsoft.com/en-us/library/hh849703%28v=wps.620%29.aspx https://technet.microsoft.com/en-us/library/hh849703%28v=wps... It was probably even in 1.0 but MSDN doesn't contain documentation for old software.