I used that same file to install the files needed to get SDRSharp working. The other thing to pay CLOSE attention to is to ensure that you do not allow the computer to install the driver automatically... If it does, you'll have to "tell" it to use a different driver for your USB DVB-T device, which will then make it work correctly. I'm a complete noob at this stuff and right now, as I type this, I'm listening to a local radio station through it, on SDRSharp.
Somewhere I also came across a script that installs HDSDR and a few other packages as well. I'm still trying to figure out which of the two programs I like better.