Sony HDR-HC5
Is a High Definition Mini DV Tape Cam. This Thread refers to A Hard Drive Cam, which Records to Files, which are either Downloaded to PC's HDD as Files or Imported into Studio Edit Album, via a USB Cable, the same as you would from an external HDD. You need a supplied Prog to Download the Files.
You are Capturing a Data Stream, via Firewire, to your HDD & not Downloading Files. Therefore you don't need a supplied Prog. However you do need a Capture Prog eg; Studio.
In view of the above, I suggest you read your Cam's Manual & S11 Manual re: Capturing via Firewire.
When you Connect your Cam for the 1st time (with it switched on), Windows loads & remembers it's Driver. You get a "Found new hardware Sony DV Cam" Pop-Up......Windows automatically Loads & Unloads the Driver each time you Connect & Disconnect thereafter & you don't get any further messages.
To check that Windows recognises your Cam, go to Imaging Devices in Device Manager. It will only show if it's connected & switched on. Then Launch Studio, which should also recognise your Cam, in Capture Device "Drop-Down".
Any further Probs, start another Thread.