• ADO.NET providers (21 tools)
• AOP (11 tools)
  Aspect-Oriented Programming
• ASP.NET (60 tools)
• Builds (30 tools)
• Caching (10 tools)
• Charting (36 tools)
• Code analysis - Standards verifiers (41 tools)
• Code conversion - Language migration (33 tools)
• Code coverage (12 tools)
• Code generation (39 tools)
  Everything related to code generation, except for data access. See the "Persistence - Data-tier" category for code generation related to data.
• Code protection - Obfuscation (28 tools)
  Ways to hide your code from prying eyes and protect your intellectual property.
• Code versioning - Source control (23 tools)
• Compilation (23 tools)
  Includes IL manipulation.
• Compression (13 tools)
  ZIP...
• Database management (14 tools)
  Everything directly related to databases
• DBMS (10 tools)
  DataBase Management Systems
• Decompilation (13 tools)
• Deployment - Installation (20 tools)
• Documentation - Code commenting (32 tools)
• Frameworks (27 tools)
• Geoprocessing (6 tools)
  Geographic information processing, GIS (Geographic Information Systems), GPS (Global Positioning System)...
• Graphics (23 tools)
  Image processing, OpenGL... See also "SVG - XAML".
• Grid computing (7 tools)
  Distributed computing, OGSI (Open Grid Services Infrastructure), OGSA (Open Grid Services Architecture)...
• IDEs - IDE add-ins (93 tools)
  Includes Code editors
• Internet and communications (71 tools)
  SMTP, FTP, MIME...
• Interoperability (33 tools)
• Inversion of Control (5 tools)
• Languages (24 tools)
• Licensing (8 tools)
• Localization (13 tools)
• Mainframes - Legacy systems (2 tools)
• Math - Logic - AI - Rules (26 tools)
  Mathematics, Logic, Artificial Intelligence, Neural Networks, Constraint programming, Rule-based Engines
• Miscellaneous (117 tools)
• Modeling - Architecture - MDA - UML (25 tools)
  Includes Software design MDA = Model Driven Architecture
• MVC (6 tools)
• Object browsing - Assembly viewers (22 tools)
  Reflection, ...
• Object-relational mapping (67 tools)
  Object-relational mapping (O/R Mapping) products integrate object-oriented programming languages capabilities with relational databases.
• Page templating (4 tools)
• Persistence - Data-tier (78 tools)
  Includes data-related code generation
• Profiling - Debugging (34 tools)
  Includes Monitoring, Performance testing, Optimization
• RAD - Dev automation (41 tools)
  Includes Application development automation
• Refactoring (11 tools)
• Regular expressions (10 tools)
• Reporting (65 tools)
  Reporting, printing and document creation. Includes support for PDF files (Adobe Portable Document Format).
• Rich client UI (8 tools)
  Components for Graphical User Interfaces (GUI), Windows Forms, smart clients...
• Scripting (7 tools)
• Security (19 tools)
  Security, Authentication...
• Sound - Audio (7 tools)
• SVG - XAML - WPF - Silverlight (20 tools)
  Scalable Vector Graphics (SVG), XAML, WPF, Silverlight
• Testing (49 tools)
• Tracing - Logging - Monitoring (31 tools)
• Web Services - Remoting - WCF (24 tools)
  Web Services, .NET Remoting, Windows Communication Foundation (WCF, Indigo)
• Workflow (4 tools)
• XML (17 tools)
  Includes everything XML, XSL, XSLT, XPath, XQuery, SAX...