Upload limits within IIS7

By default, IIS7 will restrict uploaded greater than 30mb. To overcome this, the following settings can be added to the web.config file within your web application.

<system.webServer>
    <security>
        <requestFiltering>
            <requestLimits maxAllowedContentLength="157286400" />
        </requestFiltering>
    </security>
</system.webServer>

The value for the maxAllowedContentLength attribute should be specified in bytes (MB to Bytes Conversion).

See Error message when you visit a Web site that is hosted on a server that is running Internet Information Services 7.0: “HTTP Error 404.13 – CONTENT_LENGTH_TOO_LARGE”.

It can also be helpful to define the maxRequestLength and executionTimeout attributes.

<system.web>
    <customErrors defaultRedirect="~/Error.aspx" mode="On">
        <error statusCode="404" redirect="~/Error.aspx" />
    </customErrors>
    <pages />
    <globalization culture="en-GB" uiCulture="en-GB" />
    <sessionState timeout="60" cookieless="AutoDetect" />
    <httpRuntime executionTimeout="300" maxRequestLength="150000" useFullyQualifiedRedirectUrl="false" minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="100" />
</system.web>