Windows 10-64 Pro, Local SQLServer 2019 developer edition, followed your instructions, and the quickstart. ASP.net is installed.
Using Chrome as I'd read the notes about IE and assume Edge might have the same issues.
pass 1: localhost/btnet/ - got the directory listing
pass 3: An error occurred on the server when processing the URL. Please contact the system administrator.
If you are the system administrator please click here to find out more about this error.
clicking tells me ASP isn't installed, which it is...
Probably obvious, but not to me...
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Windows 10-64 Pro, Local SQLServer 2019 developer edition, followed your instructions, and the quickstart. ASP.net is installed.
Using Chrome as I'd read the notes about IE and assume Edge might have the same issues.
pass 1: localhost/btnet/ - got the directory listing
pass 2: error 404.3
pass 3: An error occurred on the server when processing the URL. Please contact the system administrator.
If you are the system administrator please click here to find out more about this error.
clicking tells me ASP isn't installed, which it is...
Probably obvious, but not to me...
Are you using dot net framework 4 and has it been registered? See: https://backpackerdeveloper.com/articles/iis/how-to-register-net-4-with-iis-7/
Also, check whether your applocation pool is using dot net framework 4.