In order to convert JPEG to ICO, you should determine the size and color of your output files. This JPEG ICO converter offers the following image size options: 16x16, 24x24, 32x32, 48x48, 64x64, 72x72, 96x96, 128x128. Also, you can select between different color schemes, such as 16 colors, 256 colors, TrueColor, 32bpp (XP-Style) icons.
Image2Ico is very quick and handy. It features a robust and intuitive interface, which actually tells you what to do next. It converts JPEG to icon automatically. You are only to set it to work as you would like it to work.
Click on the file and press open. The image will be displayed in your selected box. You can also drag-and-drop your image to your needed box. Set your preferred transparency parameters. You can flip and rotate your images via the Tool menu. To complete conversion, select Save as in the File menu.
Apart from JPEG, Image2Ico supports lots of other formats, such as bmp, png, rle, dib, gif, jpg, jpe, wmf. This program is shareware. It is available online for only $12.50. You can either buy it now or download the free trial version and use it for 30 days. Please, do not just take descriptions on trust. Download the trial version and make your own opinion!