Large icon displays but small icon does not

I created a C# application and modified the App.ico file to create an icon
for the executable. When I view the exe file using windows explorer it shows
up when I use "Views -> Large Icons" but get some default icon when in
"Views -> Small Icons", "Views -> List", or "Views -> Details" mode. How
can I get my icon to appear in these other views ?

Thanks,
EE