iSuck

iSuck is a simple application that lets you preview large and small icons, as well as extract them from resource files as ICO or BMP images. It doesn't require setup and contains just a few basic options that can be swiftly figured out.

Outdated and portable tool

It hasn't been updated for a long time and this can be clearly observed by taking one look at its interface, represented by a small window with graphical elements which remind us of Windows 95. However, it can still be launched on modern Windows, although this might require you to download and register some DLLs.
The program's wrapped in a single .exe item that can be saved anywhere on the disk or on a USB flash drive, in order to effortlessly run iSuck on any PC. It doesn't change any settings in your Windows registry.

Preview and extract icons

It can display small and large icons found in installed or portable applications, as long as they can be launched via a DLL or EXE file. The utility can also open icons (ICO) if you want to convert them to BMP images.
You can preview the icons in the panel, find out the number of icon files included in the product, as well as turn pages if there are multiple and different sets of small and large icons available. Only one icon can be saved at a time, and it's possible to indicate the output directory, file name and format.

Evaluation and conclusion

iSuck is easy to use, once you manage to get it up and running on systems which don't have the Visual Basic (VB) runtime installed. It lets you extract large and small icons from the resource files of DLL or EXE programs, save them as ICO or BMP graphic files, as well as convert ICO to BMP. On the other hand, the app's old and has a light set of features.