OpenOfficePortable not honoring "WaitForOpenOffice" setting INI file

I have seen people mention that they use the "WaitForOpenOffice=true" setting to get OO portable from forking. I don't get this to work.

I've verified that OO reads the ini file, as the "DisableSplashScreen=true" works fine.

Is there something I have missed here? I'm using a Windows XP and starting using a console window (cmd) (batch-file).