Starting Web Cache problems

When starting de WebCache, I got the folowing message :
oracle.sysman.emSDK.util.jdk.EMException: Throwable
ORA_HOME/Webcache/logs/event_log and acces_log are empty.
What can I try ?
Willy

Are you running on Windows ?
This problem has been experienced before on Windows..
Symptom(s)
~~~~~~~~~~
Following error occurs while starting any services from EM website.
oracle.sysman.emSDK.util.jdk.EMException
Change(s)
~~~~~~~~~~
None
Cause
~~~~~~~
Unknown
Fix
~~~~
1. Stop all the iAS services (if you have started any).
Make all the services MANUAL in  control panel-->Services
2.Reboot the machine.
3.Start the following services from control panel-->Services
  i . OracleservceIASDB (Infrastructure Database)
ii.  Infrastructure_TNS_listener( (Infrastructure listener)
iii. OID Service.
4.From the command line issue the following commands:
Infrastructure_home\dcm\bin>dcmctl start -ct OHS
Infrastructure_home\dcm\bin>dcmctl start -co OC4J_DAS
Change to application Home
Application_home\dcm\bin>dcmctl start -ct OHS
Application_home\dcm\bin>dcmctl start -co OC4J_Portal
Application_home\bin>webcachectl stopall
Application_home\bin>webcachectl startall

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