The VS 2005 SDK contains a new tool for authoring Help and integrating it with VS 2005. The tool is called HelpStudio Lite. It is lightweight version of the full HelpStudio product, developed by Innovasys.
HelpStudio Lite is recommended for anyone extending VS 2005 - for example, by creating add-ins, controls, or packages. You will likely also want to author and include Help content with your extensions to VS. You can use HelpStudio Lite to author your content and compile it to the Help 2.5 (hxs) format, so it can be integrated with VS 2005.
The HelpStudio Lite documentation includes details on how to create deployment projects for your content (your hxs files). There are a couple options. One option is to use the Help Integration Wizard to create a VS setup project, which can be compiled into an Windows Installer package (msi or msm). Another option is to incorporate the InnovaHxReg tool (included with HelpStudio Lite) into your setup. You can invoke InnovaHxReg to register your content and merge it with existing VS 2005 content.
If you have existing Help 2.x files for VS 2003, you can upgrade them to work with VS 2005 by importing your collection into HelpStudio Lite and then compiling the HelpStudio Lite project. Similarly, you can import HTMLHelp 1.x (chm) files into HelpStudio Lite projects.
Here are some related links for more information.
HelpStudio Lite Press Release
Visual Studio Extensibility Center
Download the VS 2005 SDK
Thanks,
Jeremy Jones

Introducing HelpStudio Lite
miimura
Hello,
If you have encountered any problems using HelpStudio Lite, can you give me some details so that we can assist you
Richard Sloggett
Innovasys
http://www.innovasys.com
BizWorld
Sharvie
Is HelpStudio Lite included in the current (October 2005) version of the VS2005 SDK, or is it a feature of the upcoming version (March 2006)
Dirk
ulu
HelpStudio Lite will be installed automatically with the current VS2005 SDK. Once you've installed the VS SDK, there is a HelpStudio Lite shortcut under the VS SDK item on the Start Menu.
Thanks,
Jeremy
jaz
Madhur68
Other than that, it works well for generating chm files.
sdhays-at-neon
Hello,
HelpStudio Lite is only licensed and supported for the generation of Help 2.x output for integration with Visual Studio 2005. You can create pure HTML output, including a Table of Contents, Index and Full Text Search, using the full version of HelpStudio (http://www.innovasys.com). Let me know if you need any more information on this.
Richard Sloggett
Innovasys
http://www.innovasys.com
vladMD
Gang Xiao
aaa man, well back to looking,
thanks :)
Trf_papa
Bertan Aygun - MSFT
Hi progames25,
There is an alternative available for those not working directly within a full VS2005 environment.
1. Go to Microsoft Help MVP Rob Chandler's Helpware.net website to this topic:
"Install VSHIK Without VS.Net":
http://helpware.net/mshelp2/h20.htm#tip
2. Take the path to the VS2005 SDK item:
"Unblocking VS2005 SDK (Contains Help 2.x SDK for VS v8.0 2005):
http://helpware.net/mshelp2/h2faq.htm#novsnet2
Please see if using this method solves your problem
Frank
abmeynaks
Hello Rubio,
I'm sorry to hear you've been having problems using HelpStudio Lite. We would be grateful if you could provide us with some information about the nature of the problems you have been experiencing so that we can investigate and address them. Feel free to contact me direct (richard@innovasys.$nospam$com (remove the $nospam$) if you would rather.
Richard Sloggett
Innovasys
http://www.innovasys.com
hobbledskydiver
Himantura
Dose It work wiht the express editions
Becuase I get an error about not having Visual Studio 2005 installed on my computer when installing the SDK...
Thanks :)