You learn something everyday. A co-worker asked me if I knew of a program to add circles and arrows to an image. Immediately, I thought "Irfanview must be able to do that".
Quickly, I opened an image in Irfanview and searched the menus for "Add circle" or "Add arrow" or something like that. Instead I found the menu for "Show Paint Dialog". Bingo.
Click "Edit -> Show Paint Dialog", or type F12 and the MS Paint dialog opens. Now you have the capability of MS Paint from within Irfanview. Add a circle, add an arrow, or whatever you like :)
