Game Programming :: Using Directx To Decompress Jpeg In Hardware?

I am just experimenting with loading images into a picture box. I have a modest size image (1024 x 768). If I time how long it takes to load some images from disk and display into a picturebox diagnostics.stopwatch) it takes less than half the time to load a bitmap than a jpeg. The jpeg is 50k or so and the bitmap about 2 meg in size. So the read time from disk would be slower for the bitmap but decompressing the jpeg is obviously the really taxing part for my machine. Nvidia cards and the like have some really fancy hardware on them so I am wondering if there is a way to offload the jpeg decompression into the graphics card's expensive gpu making the whole process quicker: faster read from disk and faster displaying of the image. I had a look at a direct x tutorial that simply loaded an image as a sprite and it took ages. I am obviously approaching it from the wrong point of view.