Previously, I had thought I found a way to speed up discovery by limiting the search time. It turns out that there are better ways to achieve the same goal. When limiting duration, you are trying to find all endpoints implementing a given contract within a specific period of time. However, you may have other criteria, like you just want an endpoint that implements a contract. As soon as you find that endpoint, you are happy. This is pretty simple to do as well. On your FindCriteria object, just tell it you want it to stop when it finds 1 instance OR times out. Instead of setting the duration, set the MaxResults property to 1:

FindCriteria criteria = new FindCriteria(typeof(ITest));
criteria.MaxResults = 1;

That’s all there is to it!