Converting Images to Thumbnails

I want a user of my application to be able to select a .JPG for inclusion in a Catalogue. When they select the .JPG, it will be moved into the appropriate Catalogue directory structure under a folder called Images. At the same time, I would like a fixed size thumbnail, of the same Image, to be placed in a Thumbnails folder.

I have no problem with creating etc the folders/files.

My question is:

Is there an easy/cool way for me to generate a Thumbnail from an Image? For the purpose of simplicity, assume all of the images are square.

If it matters, the images will be > 1000x1000 and the Thumbnails will be < 100x100.

I should add...

I realise that I could just display the original image in a smaller PictureBox and do away with the Thumbnails... however... There will be lots of images read from a CD (slow), so I prefer to read the small Thumbnail JPG's and cache them, only showing the original large image when absolutely necessary.

ok, there seems to be an Image.GetThumbnailImage(...) member. I'll check that out.