A. A. You may find that if you submit a batch file with out the /every switch it works fine, e.g.

at 22:00 /interactive command.bat

however if you try

at 23:00 /interactive /every:M,T,W,Th,F command.bat

it fails. To correct this add cmd /c "", e.g.

at 23:00 /interactive /every: M,T,W,Th,F cmd /c "command.bat"