ArduinoISP (product not uno running sketch) driver

hi guys this is a question really - the Arduino ISP based on the fab isp needs drivers that you download and comes up as the Arduino isp but the fab isp says it needs the USB tiny ISP drivers - are the firmwares they use different? I need to use both so I hope there's no driver clash. Also how do I use the Arduino ISP from the command line with avr dude if it is not running the USB tiny ISP firmware ? Or is it but then it has a different name? Thanks Luke

ArduinoISP is using the USBtinyISP protocol, only that it is using a different VID/PID identifier.

Thanks!