Showing Pictures as Thumbnails

Dear List,
I would like to show the pictures in a directory as thumbnails. Something similar to how we see the mypictures directory in mydocuments folder. All my pictures are in different formats jpeg, gif, bmp etc. The user should be able to click the thumbnail to see the actual picture. Any pointers will be greatly appreciated.
Suresh

Load the picture full size into a hidden picturebox, then use the StretchBlt API function to shrink the picture to another picturebox.
Look up StretchBlt on www.allapi.net