Microsoft Word - Microsoft Word is a commercial word document processor for Windows.
Personal Notes File - Personal Notes File - Personal Notes File Version 02.01 (Download)
LibreOffice - Writer - Open-source cross-platform word processor.
Simplenote - The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Personal Knowbase - Can't find your critical notes when you need them?