// Get path for the pipeline root.
// Assumes that the current directory is the  
// pipeline directory structure root directory. 
String pipeRoot = Environment.CurrentDirectory;

// Update the cache files of the
// pipeline segments and add-ins.
string[] warnings = AddInStore.Update(pipeRoot);

foreach (string warning in warnings)
{
    Console.WriteLine(warning);
}

// Search for add-ins of type Calculator (the host view of the add-in)
// specifying the host's application base, instead of a path,
// for the FindAddIns method.

Collection<AddInToken> tokens = 
            AddInStore.FindAddIns(typeof(Calculator),PipelineStoreLocation.ApplicationBase);