Procedure to allow upload of files larger than 28 MB on a Window Server 2008-based computer running WSS 3.0 and IIS 7.0

The following discussion is applicable to the subscribers of Apps4Rent’s dedicated SharePoint hosting.

To work around this problem, follow these steps:

  1. Use Notepad to open the Web application Web.config file. By default, this file is in the following folder:

Microsoft Windows SharePoint Services 3.0
C:InetpubWwwrootWssVirtualDirectories VirtualDirectoryFolder

Windows Small Business Server 2008
C:Program FilesWindows Small Business ServerBinwebappInternalWebSite

  1. Add the following code at the bottom, just before the close out of the <configuration> section of the Web.config file: <system.webServer>

<system.net>

<defaultProxy>

<proxy autoDetect=”true” />

</defaultProxy>

</system.net>

<system.webServer>

<security>

<requestFiltering>

<requestLimits maxAllowedContentLength=”52428800″/>

</requestFiltering>

</security>

</system.webServer>

</configuration>

Note This code sets the value of the maxAllowedContentLength property to 52428800. Therefore, the maximum file size of an uploaded file is 52428800 bytes. However, set the value of this property so that it is larger than the file that you are trying to upload. Also, set the value of this property so that it is larger than the maximum file upload size that you have configured in SharePoint. If you do not, users will not receive an error message that they are exceeding the size limit if they try to upload a file that is larger than the maximum file upload size that you have configured in SharePoint.

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