The error "configuration system failed to initialize" occurred

Hi

When I converted and built the solution file that was developed by Visual Studio .net 2003 using Visual Studio 2005, the application program was abnormal-ended at the following step:

m_TCPChannel = New System.Runtime.Remoting.Channels.Tcp.TcpChannel(tcp_properties, Nothing, Nothing)

The error message was "configration system failed to initialize".  The Exception.ToString said that the root <configuration> tag was not included in the configuration file. Therefore, I changed <configopt> tag to <configuration> tag in the app.config file of the target project, and then executed again. Next time, the application program was abnormal-ended by the unrecognized section <xs:schema>. Therefore, I changed the app.config file to the simple one (only <configuration> and </configuration> tags), and then executed again. The error didn't occur.

app.config file is copied as XXXX.exe.config into the same folder with XXXX.exe.

I think ...
When running on Windows XP and .NET Framework 1.1, XXXX.exe.config is not checked (or initilized) at the above TcpChannel step. However, when running on Windows 7 and .NET Framework 2.0, RFID.exe.config is checked (or initialized) at the above TcpChannel step.

I think there are the differences of behavior between .NET Framework 1.1 and .NET Framework 2.0. Is my guessing correct?

app.config file:
 
<?xml version="1.0" standalone="yes"?>
 <configopt>
 <xs:schema id="configopt" xmlns="" xmlns:xs="URL Link" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 <xs:element name="configopt" msdata:IsDataSet="true" msdata:Locale="en-AU">
 <xs:complexType>
 <xs:choice maxOccurs="unbounded">
 <xs:element name="Environment">
 <xs:complexType>
 <xs:sequence>
 <xs:element name="Name" type="xs:string" minOccurs="0" />
 <xs:element name="System" type="xs:string" minOccurs="0" />
 <xs:element name="DataLibrary" type="xs:string" minOccurs="0" />
 <xs:element name="Default" type="xs:boolean" minOccurs="0" />
 <xs:element name="UserId" type="xs:string" minOccurs="0" />
 </xs:sequence>
 </xs:complexType>
 </xs:element>
 </xs:choice>
 </xs:complexType>
 </xs:element>
 </xs:schema>
 <Environment>
 <Name>Test</Name>
 <System>XXXX.COM</System>
 <DataLibrary>XXXTEST</DataLibrary>
 <Default>false</Default>
 <UserId></UserId>
 </Environment>
 <Environment>
 <Name>Production</Name>
 <System>XXXXX.COM</System>
 <DataLibrary>XXXPROD</DataLibrary>
 <Default>true</Default>
 <UserId />
 </Environment>
 </configopt>