Update in a batch file

I have a batch file and in the start I use the following script to update my software.

/*******************************start /wait wyUpdate.exe /quickcheck /justcheck /noerr

if errorlevel 2 ( start /wait wyUpdate.exe /skipinfo)/*******************************

The first command runs silently but the second command "start /wait wyUpdate.exe /skipinfo" shows a dialog with a Finish button on it. This dialog stops my batch file (which should execute at nights).

Is there a way not to show this dialog?