This plugin allows you to save files in the Windows .ico format, suitable for desktop icons and website favicons.
The file should be one of the following resolutions: 16x16, 32x32 or 64x64.
Download the plugin from www.telegraphics.com.au/sw/To Install the Plugin
If Photoshop is open, close it.
Extract the downloaded file (e.g. unzip it in Windows) and move the plugin file to your Photoshop Plug-Ins folder, under File Formats. The default location of this folder in Windows is shown on the right.
Note: The plugin file will will have a name that begins with ICOFormat.
Start Photoshop. Create or open a file with one of the correct dimensions (see above) and select File > Save > As. You can now choose .ico as one of the format options.