after windows updates, we are unable to run/browse our website due some error in machine.config file RRS feed

  • Question

  • Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

    Parser Error Message: There is no Unicode byte order mark. Cannot switch to Unicode.

    Source Error:

    [No relevant source lines]

    Source File: C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config    Line: 0

    Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053
    Tuesday, October 6, 2009 6:07 PM


  • Hello,

    Usually it happens when you have ANSI (or any one byte) encoded file with xml header
    Try this: <?xml version="1.0" encoding="utf-16" ?>

    By the way, you may post this issue on the ASP.NET Forum to see if someone has come across this issue and has got some other suggestions.
    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    Send us any feedback you have about the help from MSFT at EMAIL GONE.
    Thursday, October 8, 2009 8:55 AM