Cannot edit and save C:\Windows\Microsoft.NET\Framework64,\v4.0.30319\,Config\machine.config

I do not have write permissions for this folder.

An error occurred when I tried to run a VS app that has been running for 3 years.

How can I save the machine.config file after I have edited it?

Thanks,
DovbermanAsked:
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DovbermanAuthor Commented:
Here is more information.
Default.aspx.cs
 MembershipUser currentUser = Membership.GetUser(strUserName);

"Could not load file or assembly 'MySql.Web.v20, Version=6.9.4.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d' or one of its dependencies. The system cannot find the file specified. (C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\Config\\machine.config line 268)"}

Machine.config

Warning      1      The 'description' attribute is not allowed.      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config\machine.config      145      203      Miscellaneous Files

<configProtectedData defaultProvider="RsaProtectedConfigurationProvider">
    <providers>
      <add name="RsaProtectedConfigurationProvider" type="System.Configuration.RsaProtectedConfigurationProvider,System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" description="Uses RsaCryptoServiceProvider to encrypt and decrypt" keyContainerName="NetFrameworkConfigurationKey" cspProviderName="" useMachineContainer="true" useOAEP="false" />
      <add name="DataProtectionConfigurationProvider" type="System.Configuration.DpapiProtectedConfigurationProvider,System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" description="Uses CryptProtectData and CryptUnProtectData Windows APIs to encrypt and decrypt" useMachineProtection="true" keyEntropy="" />
    </providers>
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Big MontySenior Web Developer / CEO of ExchangeTree.org Commented:
Check that the account which the application pool is running under has access to that file
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DovbermanAuthor Commented:
This happened after I installed MySQL.  Default.aspx call to Machine.config causes error. Hosted app runs well.  I will uninstall MySQL.

Thanks,
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DovbermanAuthor Commented:
Thanks,
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