Actually... if anyone knows this... I would appreciate it if you share.
I used 500 ICON "icon.ico" the last time. I noticed some people use 100 ICON etc. I opened up my executable in the resource hacker I downloaded and saw that under the ICON group there was folder named '500' instead of the '100' that was there before.
What does this number mean? What does it do exactly? Can you have more than one Icon with different numbers, or something?
Edit: Also, what else can be added to the resource file? I have seen that you may be able to change the cursor on mouseover (html term... sorry) and perhaps more. So what are some of the other uses of the resource file? Flex your programming might.