Interfaceing a laptop computer with a Canon 40D to view pics in real time?

[SPL Tech]

Is there a way I can interface my laptop with my 40D to view pictures in real time as I take them so I can layer and create HDR images on the fly? My laptop has Windows Vista if it matters.

 

[Morpheuss]

I know there is software out there that you can load on your computer that you can use your laptop as a view and shutter button. I my canon rebel t1i came with some software to do that. I'm not sure how expensive it is. I'm sure somebody that does more with this will be able to help more.

 

[MrBarney]

I'm not sure about creating HDRs on the fly, but I believe both Canon Digital Photo Professional and Adobe Lightroom 3 provide tethered capture which is what Morpheuss referred to.