Platforms

Windows, Linux, Mac OS

Desktop programming

C++, STL

WinAPI, MFC, GDI/GDI+, COM, ATL, WTL, ActiveX, WinRT

.NET (1.1, 2.0, 3.5, 4.0, 4.5, 4.6), C#, managed C++, Windows.Forms, WPF, WCF

Qt

XML, XSLT

Web programming

ASP.NET (1.1, 2.0, 3.5, 4.0, 4.5, 4.6), MVC, HTML, JavaScript, AJAX, Silverlight

Databases

ADO.NET, LINQ, Entity Framework

MS SQL Server (2000, 2005, 2008, 2012, 2014), MS Access, SQLite, MySQL, SQL Anywhere