I'm facing a problem with web services in a IIS + Sharepoint farm...

I have a Web service that receives a byte[] and convert it to a file on the Sharepoint System. When I upload a file from the system I found no problem with file (till 50MB), when I load with my WS the call is leaved unless it is < 4MB.

I tried to modify the web.config:

<httpRuntime maxRequestLength="51200"/> //KB => 50MB

and then:

  <requestFiltering allowDoubleEscaping="true" > 
     <requestLimits maxAllowedContentLength="2000000000" /> 

do an IISReset but nothing has change: byte[] > 4MB is not accepted..

Any suggestion?

1 Answer 1


You have to increase max upload file in sharepoint central admin too in order to succeed. Microsoft Support have an article about the problem you are facing.

  • Already 50MB...
    – Ziba Leah
    Jul 18, 2012 at 9:54

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