ClsSystem

Mouse Helper is a free software that runs on Windows (7 and above), and that will help you improve your mouse operation. The biggest problems that people with Parkinson's encounter when handling the mouse are:

• They need to slow down in order to do precision tasks, like changing the width of a column.
• Because the fingers are shaking, they sometimes accidentally click.
• Drag & drop operations are often an ordeal. Many times we unintentionally drag a file into a folder.

Source: Corporate website