AOL Instant Messenger is an instant messaging program
MSN Messenger is another instant messaging program by Microsoft
Internet Explorer 8 is a web browser by Microsoft
Yahoo! Messenger is yet another instant messing program by Yahoo.
Yahoo! Patcher patches Yahoo! Messenger to connect to Wildman's Yahoo! Server.
Visual Studio 2010 is a coding language (the one Windows XP Pack was coded in) that allows you to design the UI (User Interface) than write code to make the program work.
Microsoft Office 2003 is a set of business programs that help you get work done easier with "helpful" assistants to guide you along the way.
Google Chrome is a web browser by Google.
Firefox is a web browser by Mozilla.
Malwarebytes is an antivirus program by ... Malwarebytes?