I am using IvsHierarchy.getguidproperty(..) method to get guid of a particular item. My item has different scenerio.
i,e
The item is added from the another project as a existing item. when i am using IvsHierarchy.getguidproperty(..) for c++ projects , it is working fine. Where as in case of setup project( my item is added as existing item to this setup project) i am getting system.accessviolation exception ? Could you please explain me why it is happening?