downLoad mapxtremejava.key from internet.
then put "mapxtremejava.key" into these directionaies:
C:/Program Files/MapInfo/MapXtreme-4.7.1/lib/server
C:/Program Files/MapInfo/MapXtreme-4.7.1/Tomcat-4.1/webapps/mapxtreme471/WEB-INF/classes
then put "mapxtremejava.key" into these directionaies:
C:/Program Files/MapInfo/MapXtreme-4.7.1/lib/server
C:/Program Files/MapInfo/MapXtreme-4.7.1/Tomcat-4.1/webapps/mapxtreme471/WEB-INF/classes