Type taskkill /? in a command prompt. You can use some form of that in a batch file to kill your apps. Not sure if you'll be able to get your stop.bat as versatile or 'elegant' as your start.bat, but at least it'll be able to get it done with a single command.
OK, cool. I'll play around with it and see what I can do. Thanks for your help!
System Manufacturer/Model Number Apple MacBook Pro 3,1 OS Windows 7 Home Premium 32bit SP1 CPU Intel Mobile Core 2 Duo T7700 @ 2.40GHz Merom 65nm Tech. Motherboard Apple Inc. Mac-F42388C8 (U2E1) Memory 4.0GB Dual-Channel DDR2 @ 332MHz (5-5-5-15) Graphics Card Nvidia Geforce 8800M GT Screen Resolution Built-in 17" 1920 x 1200, Extended 24" 1920 x 1080
Keyboard Apple Wireless Bluetooth Keyboard (aluminum) Mouse Apple Magic Mouse Hard Drives Seagate ST95005620AS ATA Device (SATA) - 80 GB of 500 GB partitioned for Windows 7; remainder for Mac OS X.