GetStart guide tell the wrong instruction to run the server

After download and unzip continuum 1.0-alaph3.I read getting start at continuum site.But after bin/plexus.bat ..\conf\plexus.xml .System prompt tell the "Exception in thread "main" java.lang.NoClassDefFoundError: Files\MySQL\MySQL".I readed the scripts in continnum,and set the enviorment variable "PLEXUS_HOME",and then the prompt tell me "Exception in thread "main" java.lang.NoClassDefFoundError: Files\Microsoft".
occasionally,I try the run.bat in the bin\win32,The server start up successful.