First I got the software 3.2 from here. You can find links to other download sites. this is just the one I found.
Sony : SLT-A99 updates | Download updates for SLT A99 | SLTA99
Next go to menus on your camera to the tool box page 4 and select to PC remote. USB pun setting to multi. Connect camera to computer via the micro usb cord supplied . You will need when shooting a USB extension obviously to the footage you need > after connection fire up the remote camera app. You will get a dialog box like this in which you can setup your camera controls. Don't setup the save in yet with your files. Wait till C1 to create a session first.
Okay now lets fire up C1 and create a session which hopefully everyone knows how to do.
Now go to the first tab in C1 at the top. Follow the director as shown . Users , me obviously , desktop to the session folder I created select capture folder
. Right click and select as capture folder.
Than go to top bar in the camera select hot folder enabled
Than go back to camera bar in C1 and select immediate
C1 should be all set at this point Now go back to Camera Remote dialog and browse to that session folder and the capture folder to save images in . Than as you shoot it the files go into that folder and the preview will come up in C1