Give help to error in error list of visual studio

I am developing Visual studio plugin.

In plug in , I am adding error in error list of visual studio plug in.

I know how to add error. Now I want to give help for each error.

I am using below code to add error to error list :

publicstaticErrorListProvider errorListProvider;var newError =newErrorTask();
        newError.ErrorCategory= errorCategory;
        newError.Category=TaskCategory.BuildCompile;
        newError.Text= errorMsg;
        newError.Document= errorDoc;
        newError.Line= line;
errorListProvider.Tasks.Add(newError);

So how to attach Help to each error in error list?

Note: When user right click on error. It menu has "Show error Help" option. I want to give help on that option.