Venkat,

First off, if you are using Outlook then you might want to look at TeamLook from Personify Design.  This is an Outlook integration to TFS work items and is very good - it may solve the problem you are after.

http://www.personifydesign.com/products/teamlook/teamlook.aspx

Alternatively, if you are wanting to do this in .NET code, then you should take a look at the .NET Object Model to talk to TFS.  This is the supported way of programatically extending and talking to TFS - going directly against the web services should always be avoided if possible (especially true with the work item web services).

To find out more (including sample code for creating work items etc), Visit the Visual Studio SDK site:-

http://msdn.microsoft.com/vstudio/extend/

You can find the documentation here:-

http://msdn2.microsoft.com/en-us/library/aa411710.aspx

Hope that helps,

Martin.

Sorry, it's a link from the Visual Studio Extension page (Visual Studio 2005 SDK):-

http://go.microsoft.com/fwlink/?LinkId=73702

Hope that helps,

Martin.

There is an API for adding work items but also, take a look at this:

http://www.personifydesign.com/teamlook