In our announcement of StreamInsight 1.1 we talked about StreamInsight Side by Side installation support. We wanted to clarify a couple of key points for this feature. The Side-by-Side installation process for V1.1 will not stop any StreamInsightHost instances that are currently running. This means that queries that are running against a V1.0 StreamInsightHost instance will not get redirected to V1.1 unless the user manually stops and restarts the host after the installation of V1.1. The same is true for all embedded StreamInsight applications. You would need to restart the application for it to be automatically linked to the V1.1 libraries.
The StreamInsight Team