SmartPaster - (FREE) Copy/Paste code generator for strings

AnkhSvn - (FREE) SVN Source Control Integration for VS.NET

VisualSVN Server - (FREE) Source Control

ReSharper - IDE enhancement that helps with refactoring and productivity

CodeRush - Code gen macros on steroids

Refactor - Code refactoring aid

CodeMaid (FREE) - Code cleanup, organization and complexity analysis

CodeSmith - Code Generator

GhostDoc - (FREE) Simple code commenting tool

DXCore (FREE) and its many awesome plugins: DxCore Community Plugins, CR_Documentor, CodeStyleEnforcer, RedGreen

TestDriven.Net - (FREE/PAY) Unit Testing Aid

Reflector - (PAY) Feature rich .Net Disassembler Reflector AddIn's

Web Deployment Projects - Provides additional functionality to build and deploy Web sites and Web applications (source).

StudioTools - (FREE) Navigation assistant, code metrics tool, incremental search, file explorer in visual studio and tear off editor windows. Moved from old site (archive.org) to new site and discontinued.

Not free, but ReSharper is definitely one recommendation.

Whole Tomato's Visual Assist X. I absolutely swear by it. I would like to see a better plug in for Lint than Visual Lint by Riverblade, but since that will eventually be moved onto the build server I don't mind running it every couple of days manually.

PowerCommands is a Microsoft-created plugin that offers a variety of new features that one would think probably should have been in Visual Studio in the first place.

These include

• Copying/Pasting project references!
• "Open Containing Folder" to jump straight to the hard-drive location of a file or project
• Automatic reorganizig and sorting of using statements
• "Open Command Prompt Here" to open a command prompt in any of your project folders.
• Collapse Projects

RockScroll is awesome, and free.

Addendum

As @Andrei points out, MetalScroll is a better alternative. It's Open Source, and corrects some annoying things about RS.

I'm a big fan of CodeRush and Refactor! Pro by DevExpress. I've been using them for a number of years, and without a doubt it makes me a faster developer. Also, both are built on a free framework called DXCore that allows you to develop your own plug-ins for Visual Studio, and the sky is the limit there...

• Resharper
• Resharper MbUnit Test Runner Add-On
• SQL Prompt for Database Projects (works inside your SQL Management Studio as well)
• Ankh SVN 2.0+ for free SVN support (v1.x pales in comparison)
• TeamCity plug-in to monitor your builds, personal builds, and bug tracking

I find Ghost Doc to be very useful.

GhostDoc is a free add-in for Visual Studio that automatically generates XML documentation comments for C#. Either by using existing documentation inherited from base classes or implemented interfaces, or by deducing comments from name and type of e.g. methods, properties or parameters.

If you use SVN for source control, definitely get VisualSVN. It enables TortoiseSVN interactions from within the Visual Studio IDE.

I also echo the Resharper comment. Retail price is a little steep, but if you're a student or otherwise educationally affiliated, it's actually pretty cheap.

+1 Visual Assist.

It's unfortunate that you need a plugin to get really good intellisense but it's definitely worth paying for.

LinqPad is great for testing linq to objects/xml/sql. Free download.

What about IncrediBuild? This is a nice distributed build system with visual studio integration.

Clipboard Manager

Maintains your clipboard data through removal of lines, a few other nice items but that one alone makes me happy.

Regionerate

While some have problems with regions I think if you use them, this tool is for you. Automatically region'izes your code into appropriate region blocks. Fully configurable for custom items etc.

http://trolltech.com/products/qt/">Qt Cross-Platform Application Framework

Qt is a cross-platform application framework for desktop and embedded development. It includes an intuitive API and a rich C++ class library, integrated tools for GUI development and internationalization, and support for Java™ and C++ development

They have a plug-in for Visual Studio that costs a bit of money, but it is worth every penny.

I've been using Visual Assist X for nearly two years now, and I find it so useful I can honestly say that if my employer didn't provide it, I'd have to pay for it myself.
I also use Cool Commands and SlickEdit (the free version), whose File Explorer and Command Spy tools are quite useful.

+1 for Visual Assist And I will add VLH (Visual Local History) which provides a kind of local source control system. Every time you save a file, the plugin add a copy in the local repository.

ViEmu

vi/vim support inside VS

I found this site called Visual Studio Gallery - it has a lot of visual studio add-ins. I'm browsing it right now and I recommend everyone to visit it.

Consolas font Free font from MS designed for reading code.

Sonic File Finder for when you have loads of files in your solutions and searching for them in the solution explorer becomes a pain in the wrist.

You might also find DPack interesting. Several tools and enhancements rolled into one neat package.

MZTools is great too.

+1 for CodeRush & Refactor Pro. I've been using CodeRush since its Delphi incarnations, and it's utterly wonderful. The mantra of "Code at the speed of thought" is very close to reality ;)

1. Microsoft StyleCop provides code style checking for C#, we use it all the time and love it (free)
2. Axialis IconWorkshop has a Visual Studio add-in which is now free for VS2008 users.
3. Resharper Yes another vote, because I can't upvote everyone who suggests it :)
4. Workspace Whiz for C++, I used to live by Workspace Whiz but haven't used it in VS2008 as I hadn't realised there was an update. Will have to give it a try again.

If you're doing C++ coding, hands down Visual Assist.

I love CopySourceAsToHTML as a cool little addin. It's great if you want to copy code blocks for blogging and the like while maintaining your syntax formatting.

I think this is still the url.. you have to do some manual work to set it up with 08. http://www.jtleigh.com/people/colin/software/CopySourceAsHtml/

I'm always amazed that more people don't know about/use NDepend - it shows all dependencies at every level of your code, and will even draw pretty box and arrow pictures showing how confused your architecture really is :) Together with TestDriven.Net, I can't imagine working without it any more. Free/cheap.

For the laptop bound or for those with vi/vim key bindings burned into the brain I would recommend ViEmu.

If you have not tried editing with vi key bindings here is why you may want to try "Why, oh WHY, do those #?@! nutheads use vi?"

A lot of the mentioned Addins are used by me on a regular basis. Here are just a few I I estimate, too:

• Auto Versioning Controlled Build
• Resource Refactoring Tool
• Smart Paster

All three are free and highly recommended (by me).

I 2nd VisualAssist, been using it since V6, can't live without it...

I see no one has mentiond CoolCommands: Link

Great set of time savers...

definetly +1 for VisualAssistX (cannot work without it anymore & it's worth all the money) and +1 for VisualSVN

Visual Assist: you cannot live without it!

We've covered this on this question: What is your favorite Visual Studio add-in/setting?

I like ReSharper, too! It's affordable if you're a student or otherwise connected to an university.

For interaction with SVN I'll prefer AnkhSVN.

.. and of course for connecting to TeamFoundation Server there's the Visual Studio Team Explorer

Dispatch for FTP is what Copy Web Site should have been.

This just came out but I like it a lot: Mindscape File Explorer

VisualSVN is excellent for SVN integration. Much better than Ankh (have not tried Ankh 2+ though)

SonicFileFinder for looking up files or classes quickly. Supports searching just the upper case parts of a camel-cased type name

Web Deployment Projects by Microsoft for precompiling web site projects

I use a lot the Fogbguz plug in but well you need to use Fogbugz first !!!

I just found this rather large list of addins:

http://geekswithblogs.net/brians/archive/2008/05/12/122087.aspx

+1 for VisualSVN being better than AnkhSVN, having tried both, and +1 for the FogBugz Add-in.

Ghost Docs

GhostDoc is a free add-in for Visual Studio that automatically generates XML documentation comments for C#. Either by using existing documentation inherited from base classes or implemented interfaces, or by deducing comments from name and type of e.g. methods, properties or parameters.

KingsTools is also a nice collection of macros containing:

• Run Doxygen
• Insert Doxygen comments
• Build Solution stats
• Dependency Graph
• Inheritance Graph
• Swap .h<->.cpp
• Colorize
• } End of

• region/#endregion for c++

• Search the web

Guidance Explorer

Guidance packages integrate into VS as Snippets, projects, and project templates. They provide a way to collect and reuse patterns, code, and How To answers. You can create guidance for your team and you can download the guidance packages coming out of the Patterns and Practices group at MS.

Definitely Resharper.

Not really an addon inside VS, but one every VS use needs: Code Preview Handler Provides a preview handler with syntax highlighting for source files. The handler works in the Explorer preview pane and in the preview tab for attachments in Outlook.

Source Monitor code analysis tool

Direct download link

Resharper. It's the best productivity tool for any software engineer! TestDriven.Net is pretty good too. and GhostDoc.

VLINQ LINQPad is essential, but for quick stuff inside VS, VLINQ is great.

Source Code Outliner Nice alternate view of your source files. It's the outliner from the code pane, but without all the code getting in the way of the structure.

• Refactor! Pro - Commercial. Free version available.
• GhostDoc - Free
• Comment Reflower - Free
• Versioning Controlled Build - Free

If vi/vim editing is your thang:

ViEmu for Visual Studio

If you want color-coded control-flow syntax-highlighting and graphical outlines:

Codekana

I'm the developer of these commercial tools.

Here is my list:

• Microsoft StyleCop (code analysis)
• JetBrains dotTrace (application profiling)
• Typemock Isolator (mocking in unit tests)
• Roland Weigelt's GhostDoc (code documentation)

For C# development I use:

• ReSharper, heavily customized and with a couple dozen custom actions I wrote (not to mention weird but wonderful Live Templates)
• GhostDoc - very useful for postprocessing of generated code
• Source Code Outliner
• P/factor (a set of internally developed code gen tools for VS) - see example here
• CodeGenUtils - another internal dev for code generation, available on CodePlex
• SharpWizard - a VS add-in for rapid prototyping. Supports advanced generation of interface support, operators, patterns, metadata.
• Dependency Analyser - a really nifty tool (another internal dev.) for identifying dependencies between CLR properties. Useful for autogenerating change notifications based on dependency graphs.

In addition to these, I also have a couple of DSL graphical designers for the particularly difficult scenarios - for example, I have a DSL for complex multithreaded operations that are implemented using Pulse & Wait.

I don't fancy the Visual Studio bookmarks so I use DPACK to get the same kind of bookmarks as the Delph IDE provides.

http://www.usysware.com/dpack/

Here a few I didn't find (or spot) mentioned:

• ASPXEditHelper (a must have for ASP.NET devs)
• MouseGestures
• CodeKeep
• KNOCKS
• Git Extensions

Someone mentioned SQL Prompt so I'll add SQL Assistant (similar price, but does a lot more)

Very few people mentioned DPack which is free and absolutely awesome.

Also, really get ReSharper or something similar (it will pay many times over). Bare VS just does not "compare" ;-)

Enjoy your coding!

Build Version Increment (GPL) gives you (nearly) everything you need for controlling the version of your assemblies.

Some Features (copied from the site):

• Different auto increment styles can be set per major, minor, build or revision number.
• Supports C#, VB.NET and C++.NET projects.
• Not required to be installed by all project members. Configuration is shared via properties in the solution and project files. Developers who don't have the addin won't feel a thing.
• Automatically checks out required files if under source control.
• Can be configured per solution and/or per project.
• Can be configured to update only on certain configuration builds (debug, release, any or custom)
• Can update assembly attributes in an external source file instead of the default AssemblyInfo.

• Resharper (Agree it sucks you have to pay extra to get this, but well work the money)

• GhostDoc (Takes away any excuse for not having comments in your code)

• PowerCommands for VS 2008 (Forgot I even had this installed because it just adds a the little things that should have been there all along)

In addition to the refactoring and source control tools listed here, AQTime is a great windows profiler. It can run as a plugin or stand-alone and it works with .NET and native code.

XPathmania is a good little tool for writing and testing XPath queries.

A better Addin Manager

Project MRU editor

CodePlotter and CodePlotter Remixed

Code Style Enforcer Lets you define a .NET code style (with some degree of flexibility) and underlines violations. Has context-menu options to change the code to match the style. Requires DXCore, which is linked from the Code Style Enforcer page. Both are free.

PInvoke.NET addon Menu to search for pre-written P/Invoke code. Much easier than working out the marshalling code yourself, especially when there are nasty unions and alignment requirements.

If you are looking for a better code editor, vim comes with VisVim, a plugin to replace the VS code editor with vim.

VS Command Shell Command shell in the Output pane. Far from perfect, but often very, very useful. Faster and easier to get to than a separate cmd and has easier copy/paste support.

Spell Checker for comments is a godsend. GhostDoc is great for making well documented APIs.

TracExplorer is cool for integrating Trac with VS.

It's not a Visual Studio add in, but it is a tool that I couldn't use Visual Studio without it...

ClipX - it's works with the normal clipboard, but saves the entries to a searchable list, you can use copy and paste as ususal, but you can hit CTRL+SHIFT+V and the list pops up. It works with images, text, etc. It even persists after you reboot your computer.

I know this is not a VS add-in but SSMS one anyway could be useful for anyone working with MSSQL.

Just for the case you wanna see more like this one check this post. Actually from ssmstoolspack creator.

While Visual SVN costs $50 or so, I strongly prefer it over AnkhSVN (which I last tried about a year ago - it may have improved since).

It's one of the easiest to sell to your boss if funding is an issue. (Thankfully we don't have to scratch and claw to get good tools where I work.)

one that I wrote http://www.codeplex.com/lazy

DevExtra - but I'm biased cause I wrote it :)

http://www.toptensoftware.com/devextra/

It's a bit old now (has its origins in VC6) and mostly oriented towards C++ developers but its free and I still use it every day.

Quick Open File is a plugin that, coming from an Eclipse background, I can't live without

http://kutny.net/vsopen/

No more digging through the solution explorer trying to find files