CruiseControl.NET check output for success messages

We have a very large legacy system which is built using complicated batch files. Our CruiseControl.NET server simply calls the batch files and checks the return code, which works fine and produces a successful build.

Sometimes however the batch file doesn't seem to return properly after a successful build, an开发者_如何学God CruiseControl.NET simply hits the timeout and reports the build as failed.

Is there any way I can get CruiseControl.NET to check the output from the batch file for the string which indicates a successful build, and correctly report the status of the build?

(When I get a spare day or two I want to rewrite the build scripts using NAnt or something, but it's not been given a high priority since its so complicated, and it's currently working)

EDIT: this is the entry in ccnet.config

  <project name="MyProject" queue="Q1" queuePriority="1">
    <workingDirectory>D:\MyProject</workingDirectory>    
    <triggers />
    <tasks>
      <exec>
        <executable>buildexe.bat</executable>
        <baseDirectory>D:\MyProject</baseDirectory>
        <buildArgs>V12.8 MyProject</buildArgs>
        <buildTimeoutSeconds>6000</buildTimeoutSeconds>
        <successExitCodes>0</successExitCodes>
      </exec>
    </tasks>
    <publishers>
      <xmllogger logDir="D:\MyProject\logs\V12.8" />    
    </publishers>    
  </project>

Did you try explicitely setting the successexitscodes?

See http://confluence.public.thoughtworks.org/display/CCNET/Executable+Task