For the following error:
Could not load file or assembly ‘file:///C:\\Program Files\\SAP BusinessObjects\\SAP BusinessObjects Enterprise XI 4.0\\win32
Use only
<startup useLegacyV2RuntimeActivationPolicy="true">
</startup>
It works for all frameworks!
Please use this code. It may be helpful for you.
<startup useLegacyV2RuntimeActivationPolicy="true">
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>
This is slightly different than you. For more details visit this link Crystal Report Viewer