http://www.filehelpers.net
The FileHelpers are an easy to use .NET library written in C#. Is designed to read/write data from flat files with fixed length or delimited records (CSV). Also has support to import/export data from different data storages (Excel, Access, SqlServer)
Code on GitHub: https://github.com/MarcosMeli/FileHelpers
USPS One Code - Intelligent Mail Barcode (4-State Customer Barcode) - encoder implementation with VS 2008. Sourcecode in C# and VB.NET and binaries for .NET (1.1, 2.0 and 3.5), .NET CF (2.0 and 3.5) and Mono (1.* and 2.0).
Refal.NET - Versatile, Compact yet Powfull Text Transformer and Compiler-Writing System. Based on Refal.NET Virtual Machine (+Refal.NET Compiler), this RAD-tool might be used for rapid prototyping, decreasing up to 10 times development efforts.