MSBuild Team Blog. MSBuild documentation (msdn) BuildTask creation MSBuild used by VS projects to build items. You can add build tasks to your Project file, either by directly adding to the .proj file or by creating .targets files with the task within and then adding this .targets file to your project file using the include option. The BuildTask can do anything you wish but the format which you call it is basically the same. To use a build task you must include the file that contains the BuildTask functionality. The BuildTask itself is just a class that extends Microsoft.Build.Utilities.Task . Compile it into a dll and include the dll in your project file with the UsingTask . The AssemblyFile points to the location and name of the task's assembly, AssemblyFileName can also be used but only requires the file name, this means the file must be in the GAC or in the installation of .NET. <pre> <usingtask taskname="SetupUtils.RegistryTask" assemblyfile="...
