as you may have noticed, the current version of Chrome (V42) does not support Silverlight out of the box anymore.
Silverlight is based on the NPAPI plulgin API, which is now disabled by default in the last Chrome release.
You can make Silverlight work again by performing the following steps:
1: open chrome
2: go to url chrome://flags/#enable-npapi
3: click the „Enable“ button under „Enable NPAPI“
4: restart chrome
5: go to url chrome://plugins and make sure that the Silverlight plugin is enabled
6: Silverlight should work again.