Build instruction: extract the archive to the mcs/class/ dir to build it on windows: nant to build it on linux: make -f makefile.gnu install prefix=/pathtoyourmonoinstallationdir/ to run tests on windows: nant test to run tests on linux: cd Test make -f makefile.gnu test If you want to use it with other applications, you have to reference it with "-r System.Runtime.Serialization.Formatters.Soap1.dll"