From Gordon's Freeware:
Here are three simple similar versions, one displays multi-coloured keys. Text can either be saved as OSK.txt in My Documents or it can be Copied and Pasted into any text software when finished. It will also be saved if you activate the Notepad option and displayed there. Note to right click for uppercase or use the red button to toggle the case with the OSKtablets version.
What's new in this version:
Third program added for tablets and touch screens.