Killing Hidden Dos appl

I'm Running a DOS Appl which I have in vbHide and i am redirecting the output to a file.
ExecHandle = Shell(BatFile, vbHide) ' run the bat

1) How colud i know if my bat file is finished executing ?? ( i want to read the output).
2) How do i close Dos appl??

Best Regards

I dunno, but "Kill Yourapp.exe" heheh is a pretty funny solution too!