I tried to upgrade to Silverlight viewer 3.0 (64-bit) OS and when I launched the viewer, I received an extension load fail error. Does anyone know the fix for this?
Clearing the cache did not solve the problem, including following the install steps. Inaddition, I had an ESRI tech assist me and he received a network error when he tried to install silverlight 3.0 on 64-bit computer?