Process returned 0 (0x0)      execution time  :   0.250s
This i take is a progressbar control.
This is not a "progressbar control", but a text entry in the C::B logs.
How can I disable it ?
You cannot "disable" what C::B logs for your conveniance. However, 
why on earth would you like to disable this message? It tells you that you app 
did run; 
how long it did run and what 
exit code came back from your app. This all is most-valuable information. It makes no sense at all to "disable" this log entry.
Mind to explain in more detail what 
exactly your problem is?! :shock: