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  • Re: VS 2019 APS.NET VB IIS 10 - Error Code 0x80070021

    Sep 09, 2020 09:01 PM|Remmy|LINK

    IIS Express 10 is the only IIS that is installed on my machine. It comes with VS 2019. But There are applicationHost.config files located in the visual studio project folder for the web application under .vs\config, and then there is one under Windows\System32\inetsrv\config, and one under Windows\System32\inetsrv\config. Keep in mind that this is a new laptop with a fresh install of VS 2019. You would think that the one in the project folder would be the one, but I am not sure what needs to be changed. When I try to compile the web application is when the error occurs.