One of the features introduced with Silverlight 4 was the out-of-browser feature, enabling you to create an application that can be installed, run offline, automatically updated, etc. As a part of that feature, some of the major code signing certificate vendors (for Authenticode certs) provided our team with test certificates so that we could go through the same process as a developer would to acquire the cert and apply it to an app…and, of course, validate it works. During that time some of those vendors had promotional codes for the first year for Silverlight developers, providing reduced-rate (but not...