Png2ico，PNG到ICON格式的转换工具

Png2ico, a PNG to icon converter.

引用

Png2ico is a PNG to icon converter. Converts PNG files to Windows icon resource files. If you're looking for a program to create a favicon.ico for your Web site, look no further. This is a console application without a graphical user interface (that means no icons, no mouse). You have to launch it either from the console or via Start/Run. You cannot just double-click it.
it runs thru a dos (command) prompt, with a comand line like "png2ico favicon.ico mypic.png"
Width must be multiple of 8 and <256. Height must be <256