Microsoft (R) ASP.NET RegIIS version 9.33440Īdministration utility to install and uninstall ASP.NET on the local machine.Ĭopyright (C) Microsoft Corporation. On my Windows 8.1 aspnet_regiis resulted in this message: The information is fairly easily available, but with this post I’d like to cut away the fat and stick to a very easy how-to. Setting up a new development box for myself I had forgotten all about the necessity to use the aspnet_regiis.exe –i command.