No. I uploaded the same file (9MB) from both Desktop and Laptop.

 

We do not use Silverlight and do not have Silverlight installed on any of our servers.

 

This is my trust policy found on Web.config at the machine level.

<location allowOverride="true">
        <system.web>
            <securityPolicy>
                <trustLevel name="Full" policyFile="internal"/>
                <trustLevel name="High" policyFile="web_hightrust.config"/>
                <trustLevel name="Medium" policyFile="web_mediumtrust.config"/>
                <trustLevel name="Low" policyFile="web_lowtrust.config"/>
                <trustLevel name="Minimal" policyFile="web_minimaltrust.config"/>
            </securityPolicy>
            <trust level="Full" originUrl=""/>
        </system.web>
    </location>