This was FREEWARE convert Bitmap(*.BMP) and Icon(*.ICON) each other.
  
   ...but now, some other image formats are available.
  
  - Import formats list (up to size of 128x128)
    BMP - Windows Bitmap (1/4/8/24bit, Windows Bitmap, non compressed)
    ICO (1/4/8/24/32bit)
    PNG (1/4/8/24/32bit)
    PSD (32bit = R G B Alpha channels, No Layer style,
         non compressed/RLE compressed)
    EXE/DLL/ICL (16/32bit) of ICO (Group icon has been supported since v1.13)
  
  - Export formats list (up to size of 128x128)
    BMP (1/4/8/24bit, Windows Bitmap, non compressed)
    ICO (1/4/8/24/32bit)
    PNG (1/4/8/24/32bit)
    ICL (16bit) of ICO (Group icon has been supported since v1.13)

You can...
  - Make Windows XP Icons. (By opening Photoshop/PNG files. By Alpha
    channel Editing tools.)
  - Make Multiple-Icon which has some icons in a file.
  - Edit Transparency-Mask.
  - Open 1x1 to 128x128 size of images.
  - Open 1/4/8/24/32bits color images.
  - Extract icons from EXE/DLLs. - Group icon has been supported since v1.13.
  - Import/Export Icon Library (*.ICL) - Group icon has been supported since v1.13.
  - Copy to / Paste from Clipboard.
  - Take screenshot of icon list.

1.21 (Feb 04, 2007)
- Added: Support Vista icons. (read/write from/to *.ICO and *.ICL)
         Therefore now up to 256x256 of image sizes are supported.
         If you wish to save to vista format, choose [Options][Icon Save Format][Vista Format]
- Fixed: View size ComboBox did not work.
- Fixed: Text color did not inherit windows design settings.
- Fixed: In some cases, list images and large icon images were not displayed correctly.
- Fixed: Error occurred when saving many icons to *.ico or *.icl file.