Here is what I have been using. The commands work perfectly, except for leaving the window open when the apps have started.
The "sleep" commands are used as the apps take a little time to open.
CD C:\Ham Radio\DXKeeper\
START "" "C:\Ham Radio\Pathfinder\Pathfinder.exe"
Sleep 3
START "" "C:\Ham Radio\DXView\DXView.exe"
START "" "C:\Ham Radio\DXKeeper\DXKeeper.exe"
Sleep 7
START "" "C:\Ham Radio\Commander\CI-V Commander.exe"
Sleep 3
CD C:\MULTIPSK\
START MULTIPSK
Sleep 3
START "" "C:\Ham Radio\Launcher\Sound.bat"
START "" "C:\Ham Radio\QuickMix\QuickMix.exe"
CD C:\
EXIT
Sorry if I was unclear.
Can you please post your batch file here so we can see what we're dealing with.