Copy and paste this example.
@echo off
:: Change this to any directory, I used windows because it's already on the computer.
cd c:\windows
:: I used all exe's here but you can change that to *.ppt or whatever.
dir *.exe
pause
:: Change the following anyway you see fit.
GOTO :Choices
:Choices
echo 1. Whatever
echo 2. Whatever
echo 3. Whatever
echo.
set /p choice=Please choose a number:
IF NOT '%choice%'=='' set choice=%choice:~0,1%
IF '%choice%'=='1' GOTO choice1
IF '%choice%'=='2' GOTO choice2
IF '%choice%'=='3' GOTO choice3
pause
GOTO :Choices
:choice1
echo You chose 1
pause
exit
:choice2
echo You chose 2
pause
exit
Also google batch file tutorials, there's a lot of info out there.
Good luck,
Greg