Portable Screenshot Taker
If you’re looking for a portable screenshot taker application that you can carry anywhere within your USB drive, take a look at the features offered by Screenshoter.
Screenshoter is a free application for Windows that lets you take screenshot of selected area or full screen. Extract the application and double-click the exe file to run it. There are some options you can configure to your preferences before starting to take screenshots, such as the image format, the area to be captured, the quality of jpg, filename, hiding or showing cursor when taking screenshots, and select the folder where you want the screenshots to be saved into.

When everything has been set to your needs, you can start to take screenshot either by clicking the screenshot button or by pressing the printscreen key. The application can be minimized to tray during the process of taking screenshots. Keep in mind that you must save your configuration before exiting the application. Otherwise the configuration will go back to its default state.
There is nothing magnificient from this tool, but you might want to consider using it if you’re looking for an alternative, small-size, portable screenshot taker that lets you take screenshots quickly. The size of the current version, v1.1, is less than 100KB.
Here is the demo video showing how the application works:
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