.NET Tools
Here are listed some of the existing companion tools for .NET development.
Although quite comprehensive, this list is not exhaustive. You can submit new tools or report a dead link by dropping me a line.
Note: I have to restrict myself to tool products, and avoid components, class libraries, articles, techniques... otherwise the list would be way too long! That does not mean that I won't make exceptions if I decide to cover a particular area (probably I did already ;-) ).
Chad Osgood has created an RSS feed for this list. Check it out right now to keep informed when the list is updated.
Code generation
XGoF - Part of the NMatrix project by DEVerest
Compilation
eXtensible C# - ResolveCorp
DotGNU - GNU
Delta Forth .NET - Valer Bocan
S# - SmallScript Corp.
Obfuscation
LSW-IL-Obfuscator - Lesser Software
Demeanor for .NET - Wise Owl
Salamander .NET Obfuscator - Remotesoft
Salamander .NET Protector - Remotesoft
IL-Obfuscator - 9rays.Net
Deploy.NET - Jungle Creatures
Dotfuscator - PreEmptive Solutions (lite version included in Visual Studio 2003)
XenoCode - Oak Vale Networks
Thinstall - Jonathan Clark
Decompilation
Salamander .NET Decompiler - Remotesoft
Object browsing - Assembly viewers
.NET Reflector - Lutz Roeder
.NET Resourcer - Lutz Roeder
LSW-DotNet-Reflection-Browser - Lesser Software
.NET Component Inspector - nogoop software
Object State Browser - Jeff Key
ControlInspector - Jabes
Asmex - Ben Peterson
Refactoring
C# Refactoring Tool - .NET Refactoring
C# Refactory - Xtreme Simplicity
Persistence and data-related code generation
See also "RAD Tools - Application Development Automation" below
OlyMars (SQL Server Centric .NET Code Generator)
LLBLGen - Solutions Design
.NET N-Tier Framework Generator - Gavin Joyce
Entity Broker - Thona Consulting
TierDeveloper - AlachiSoft
Data Tier Modeler for .NET (DTM) - Evaluant
ORM.NET - Olero Software
.Net Persistence - Netica
ObjectSpaces - Microsoft
Sisyphus Persistence Framework
Objectz.NET - Mongoose solutions
Visible Developer - Visible Systems
ObjectSpark - Firestar Software
ADO.NET Powertoys - The ADO Guy
Database to .NET - Nantronix Software
Xheo.Enterprise - Xheo
PERST - Konstantin Knizhnik
RAD tools - Application development automation
DeKlarit - ARTech
DataPhor - Alphora
CompileX - Atlantis DB Software
Modeling - Software design - Architecture - Model driven architecture - UML
Rational XDE - IBM
Visio - Microsoft (part of Visual Studio .NET Enterprise Architect edition)
Visual Case - Artiso
MagicDraw - No Magic
Constructor() - Dot Net Builders
Wilde - WildeTechnologies
Enterprise Architect - Sparx Systems
Codagen Architect - Codagen Technologies
IDEs - Code editors - IDE add-ins for code edition
Visual Studio .NET - Microsoft
PrimalCode - Sapien
ASP.NET Web Matrix - Microsoft
Improve C# Plugin for Eclipse - Improve
QuickCode.NET - Development Expertise
CodeWright for Microsoft Visual Studio .NET - Borland
Eiffel ENViSioN! - Eiffel Software
EiffelStudio - Eiffel Software
Visual Perl - ActiveState
Visual Python - ActiveState
Visual XSLT - ActiveState
Visual SlickEdit - SlickEdit
Total .NET SourceBook - FMS
Total .NET XRef - FMS
Builds
FinalBuilder - Atozed Software
BuildIt - Microsoft
Visual Build Professional - Kinook Software
Testing
X-Unity - MIIK Ltd.
HarnessIt - United Binary
SilkPerformer .NET Explorer - Segue
Test.NET - Parasoft
Code analysis - Standards verifiers
FxCop - Microsoft
Total .NET Analyzer - FMS
CLRxLint - Software4net
Profiling - Monitoring - Performance Testing - Optimization
Application Center Test - Microsoft (part of Visual Studio .NET Enterprise editions)
DevPartner Profiler - Compuware Corporation
DevPartner Studio - Compuware Corporation
AQtime .NET - AutomatedQA
Rational Quantify for Windows - IBM
.NET Memory Profiler - SciTech Software AB
Allocation Profiler (source) - Microsoft
ANTS Profiler - Red Gate Software
ANTS Load - Red Gate Software
ASPNETWatchDog - ASPNETWatchDog
Optimizeit Profiler - Borland
VTune Performance Analyzer - Intel
Documentation - Code commenting
Documentor for .NET - Lutz Roeder
Visual Studio .NET Help Integration Kit - Microsoft
VB.NET XML Comments Creator - Fesersoft
VB.NET XML Commentor - Tor-Erik Hagen
TeeGofer - Steema Software
CodeReview - Macadamian Technologies
NetDoc - Sydlow LLC
Frameworks
Mere Mortals .NET Framework - Oak Leaf Enterprises Solution Design
Odyseus - Radical Technologies
ACES for .NET - Silver Leap Technologies
MVC
AOP
Code versioning - Source control
Visual SourceSafe - Microsoft (part of Visual Studio .NET Enterprise editions)
SourceGear Vault - SourceGear
SourceOffsite - SourceGear
SourceOffsite Collaborative Edition - SourceGear
Localization
Enterprise Localization Toolkit - Microsoft
Reporting
ActiveReports - Data Dynamics
Crystal Reports - Crystal Decisions
Report Sharp-Shooter - 9rays.Net
Page templating
Page Template Generator - Paul Wilson
Xheo.WebTemplate - Xheo
Xheo.WebSkin - Xheo
Scripting
Alintex Script Host - Alintex
DOTNET Scripting Host - Holger Schwichtenberg
Toolsack DotNet Script Host - Toolsack Software
PerlASPX - ActiveState
Installation
InstallShield - InstallShield
Wise for Visual Studio .NET - Wise Solutions
Regular Expressions
RegexDesigner.NET - Chris Sells
Expresso - Ultrapico
Mainframes - Legacy Systems
ClientBuilder - ClientSoft
ServiceBuilder - ClientSoft
Code conversion - Language migration
ASP2ASPX - Netcoole
WinFormToWeb - ArtinSoft
Java Language Conversion Assistant - Microsoft
Others
Page ViewState Parser - Paul Wilson
ViewState Decoder - Fritz Onion
FormBuilder.NET - Dan Wahlin
Cassini Web Server - Microsoft
Web.Config Editor - HunterStone
Xheo.Licensing - Xheo
xmlspy - Altova
SP Compare - Bewise
Useful links
Persistence: http://groups.msn.com/DotNetPersistence/tools.msnw
C#: http://www.gotdotnet.com/team/csharp/tools/default.aspx
Languages: http://dotnetweblogs.com/Britchie/posts/3920.aspx