What kind of project do I need to create in the excersise 4? for example; windows form, web, console application, etc?
Is it ok to use VS 2012?
For the solution file, I created a small C# application for this. Any method you use just needs to be able to generate a valid WebId which you can then use to retrieve data for the attribute.
The point of this exercise is largely to ensure you feel comfortable working with the WebId 2.0 specification, so windows form, web page, console app are all valid so long as the resulting WebId is valid.
Retrieving data ...