Therefore before uninstalling old WebOffice plot extension and installing new one, apply the administrations steps described below:
•You need to copy away the ArcGIS Server map configuration files from
o<ArcGIS Server installation directory>\server\user\cfg
To e.g.
oC:\temp\backup\cfg
•You then need to delete all ArcGIS Server map configuration files from <ArcGIS Server installation directory>\server\user\cfg