.net informix connection

Question

Hello, I am having trouble connecting to an informix database from a .net web application. I am not able to modify the code in the application. When I try to run the application, I am getting the following error -

SQL0035N  The file "en_us\IBM.Data.Informix.xml" cannot be opened. 

I assume it is an incorrect configuration in my machine.config file, but I've tried many different combinations to no avail. below is my code from my machine.config file - can anyone see anything that may be causing this error? I've got the INFORMIXDIR environment variable set correctly and the en_us\IBM.data.Informix.xml file exists in the msg directory which is where it belongs (I think) -

....

<runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1" appliesTo="v2.0.50727">
            <dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
                <assemblyIdentity name="IBM.Data.Informix" publicKeyToken="7c307b91aa13d208" culture="" />
                <bindingRedirect oldVersion="2.81.0.0" newVersion="3.0.0.2" />
            </dependentAssembly>
            <dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
                <assemblyIdentity name="IBM.Data.Informix.3.0.0" publicKeyToken="7c307b91aa13d208" culture="" />
                <bindingRedirect oldVersion="2.81.0.0" newVersion="3.0.0.2" />
                <codeBase version="3.0.0.2" href="C:\Program Files\IBM\Informix\Client-SDK\bin\netf20\specific\IBM.Data.Informix.3.00.06000.dll" />
            </dependentAssembly>
        </assemblyBinding>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1" appliesTo="v2.0.50727">
            <dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
                <assemblyIdentity name="IBM.Data.Informix" publicKeyToken="7c307b91aa13d208" culture="" />
                <bindingRedirect oldVersion="2.81.0.0" newVersion="3.0.0.2" />
            </dependentAssembly>
            <dependentAssembly xmlns="urn:schemas-microsoft-com:asm.v1">
                <assemblyIdentity name="IBM.Data.Informix.3.0.0" publicKeyToken="7c307b91aa13d208" culture="" />
                <bindingRedirect oldVersion="2.81.0.0" newVersion="3.0.0.2" />
                <codeBase version="3.0.0.2" href="C:\Program Files\IBM\Informix\Client-SDK\bin\netf20\specific\IBM.Data.Informix.3.00.06000.dll" />
            </dependentAssembly>
        </assemblyBinding>
      </runtime>    

    .....

    <DbProviderFactories>
          <add name="Odbc Data Provider" invariant="System.Data.Odbc" description=".Net Framework Data Provider for Odbc" type="System.Data.Odbc.OdbcFactory, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
          <add name="OleDb Data Provider" invariant="System.Data.OleDb" description=".Net Framework Data Provider for OleDb" type="System.Data.OleDb.OleDbFactory, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
          <add name="OracleClient Data Provider" invariant="System.Data.OracleClient" description=".Net Framework Data Provider for Oracle" type="System.Data.OracleClient.OracleClientFactory, System.Data.OracleClient, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
          <add name="SqlClient Data Provider" invariant="System.Data.SqlClient" description=".Net Framework Data Provider for SqlServer" type="System.Data.SqlClient.SqlClientFactory, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
          <add name="Microsoft SQL Server Compact Data Provider" invariant="System.Data.SqlServerCe.3.5" description=".NET Framework Data Provider for Microsoft SQL Server Compact" type="System.Data.SqlServerCe.SqlCeProviderFactory, System.Data.SqlServerCe, Version=3.5.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
          <add name="IBM Informix .NET Data Provider" invariant="IBM.Data.Informix" description="IBM Informix Data Provider for .NET Framework 2.0" type="IBM.Data.Informix.IfxFactory, IBM.Data.Informix, Version=3.0.0.2, Culture=neutral, PublicKeyToken=7c307b91aa13d208" />
          <add name="IBM Informix .NET Data Provider 3.0.0" invariant="IBM.Data.Informix.3.0.0" description="IBM Informix Data Provider 3.0.0 for .NET Framework 2.0" type="IBM.Data.Informix.IfxFactory, IBM.Data.Informix.3.0.0, Version=3.0.0.2, Culture=neutral, PublicKeyToken=7c307b91aa13d208" />
        </DbProviderFactories>

Thanks for any thoughts.