A. If you are using IIS, you need to change two IIS Metabase values. Steps:

1) Using IIS Manager check the "Enable Direct MetaBase Edit" in the properties of the local computer node.

2) Restart the IIS Admin Service.

3) Carefully edit the "c:\windows\system32\inetsvr\MetaBase.xml" file. Change two values:
     (a) AspMaxRequestEntityAllowed="100000000" (that's one hundred million)
     (b) AspBufferingLimit="200000000" (that's two hundred million)

4) From a command prompt, run the command "IISReset.exe".

That should do it.