DotNet20BridgeNet4x ##Library with classes from Mono to bring modern C# language features to .NET 2.0 1:DotNet20BridgeNet4x provides C# 5 async and await support for net2.0 projects. DotNet20BridgeNet4x provides old .net2.0 projects support async CTP (async and await keyword) 2: Task Parallel Library(TPL) in net2.0 projects. 3: Linq int net2.0 projects. 4: Linq.Expressions int net2.0 projects. 5: Pipes in net2.0 projects.