linkspy is a free app that shows you the headers, response code and content from HTTP requests.
This is useful for expanding short links, or checking where a suspicious link may take you. This is what you need for finding out where that short URL leads.
linkspy is very user-friendly and permits you to quickly expand any short links to keep you in control of determining where a suspicious link may take you before it's too late. You can then save the data to a text file for future reference or analysis.
Complete Internet Repair does exactly what it says. It attempts to repair everything internet-related, including networking problems. Video tutorial and a portable version are also available.
With inSSIDer, you can inspect your Wi-Fi and surrounding networks, scan and filter hundreds of nearby access points, troubleshot the competing access points and clogged Wi-Fi channels, and more.
Simple Port Tester is a free program by PcWinTech.com to help users test if their ports are open with just a few clicks. Now supports 52 Languages. Portable version also available.