API's to access 'Novell GroupWise' data for c#.What will be difference if i use "gwtapp.dll" or "GroupWise Web Services"?

I want to read mail,calendar,contact items from Novell GroupWise Client.(using version 8). How to start with? Which API is best for this?

What 开发者_StackOverflow社区will be difference if i use "gwtapp.dll" or "GroupWise Web Services" ?

thanx

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One good way would be to use GroupWise Web Services provided by NDK. Have a look at the Novell documentation for the web services.