[megaloman]

program "file1|file2|file3".... »

Код:

@Echo Off
cls
	If "%*"=="" (Echo No arguments &Pause &Exit /b 2)
	
	Set "A="
	For %%i In (%*) Do Call Set "A=%%A%%|%%i"
	Call Set A="%A:~1%"
echo on
	program %A%
Pause
Exit /B

В боевом варианте Echo on не нужен