In XP, if you opened a picture in the native viewer, and then told it to print, you could easily select which photos (in that folder) that you wanted to print in the same batch.
Vista and Windows 7 make this much more counter intuitive. But luckily not impossible.
To achieve the same in the newer Windows, first navigate to the folder your photos are in, then select all the photos you want to print. Next hit the alt key, which will open the inconveniently hidden menus in that window. Select print.
Then you get the same sort of multi-photo printing that you know and love from XP.