I get the error message 'System.Text.RegularExpressions.RegexOptions' does not contain a definition for 'CultureInvariant' when compiling the MIME.Base to enter in the debug mode. How do I clear this?
This error is caused in the machines with the pre SP3 installations of 1.0 .NET Framework. This issue had been fixed in the .NET Framework service pack 3. The users can download the Microsoft .NET Framework 1.0 Service Pack 3 from the link shown below,