@echo off
echo Starting QQ...
D:
cd D:\Program Files\QQ
start qq.exe
echo Starting WangWang...
cd D:\Program Files\WangWang
start WangWang.exe
echo Starting Google Talk...
cd D:\Program Files\Gtalk
start googletalk.exe
exit

或者可以写成

@echo off
echo Starting QQ...
start "" "D:\Program Files\QQ\qq.exe"
echo Starting WangWang...
start "" "D:\Program Files\WangWang\WangWang.exe"
echo Starting Google Talk...
start "" "D:\Program Files\Gtalk\googletalk.exe"