Recently I've posted my experience with installation of PostSharp Once PostSharp is installed in solution's packages folder for some project(s), I often need to add PostSharp to another project in the same solutionSection "Adding PostSharp to your project using PostSharp HQ" of documentation described the process quite well.I only want to add that the actual location of PostSharp HQ ( if it was installed from NuGet) is[solution root ]packages\PostSharp.2.1.7.1... ......