https://community.microfocus.com/cyberres/fortify/fortify-education-after-hours/w/fortify-digital-learning-tips-info/42723/installation-of-fortify-22-1-0-scancentral-dast-in-easy-steps-on-windows-2019-server

check the above link, may be it can help!

Thank you vjohari for rapid answer, but I think this manual is dedicated to docker enviroment configuration. I used it before and it was very helpfull  due to DASTConfigurationToolCLI fight with. 
But I dont get how to configure standalone WI.

check the page no 35 of https://community.microfocus.com/cyberres/fortify/fortify-education-after-hours/w/fortify-digital-learning-tips-info/40038/installation-of-fortify-20-2-0-scancentral-dast-in-easy-steps it may give your some hint.

ok, thanks, that is what I'm looking for. 

So I should:
- unpack "ScanCentral DAST - Sensor Service.zip" package to app folder (f.exmpl. %PathToScannerService%),
- configure appsettings.json file (I used file form DAST.ConfigurationToolCLI) (remember to edit paths)
- create (local or domain) service account, and grant permitions to %AppsPath%
- register service 

sc create ScannerWorkerService binpath= "%PathToScannerService%
\DAST.ScannerWorkerService.exe" start= auto depend= "WebInspect API"
displayname= "WebInspect DAST Scanner Worker Service" obj=".\(custom_service_account)" password="(password)"

In my case when I'had try to start service I received message "Error 1053: The Service did not Respond to the Start or Control Request in a Timely Fashion" .
Starting DAST.ScannerWorkerService.exe in cmd finished with error "The required library hostfxr.dll could not found."

I will try to set %DOTNET_ROOT% variable. 

Thank you vjohari very much for your usefull tips. 

edit:
Thank you ThatCanadaGuy for your tip. 
After "dotNet SDK 5.0.408 (x64)" install scanner service has started.

-- 
Pawel

ok, thanks, that is what I'm looking for. 

So I should:
- unpack "ScanCentral DAST - Sensor Service.zip" package to app folder (f.exmpl. %PathToScannerService%),
- configure appsettings.json file (I used file form DAST.ConfigurationToolCLI) (remember to edit paths)
- create (local or domain) service account, and grant permitions to %AppsPath%
- register service 

sc create ScannerWorkerService binpath= "%PathToScannerService%
\DAST.ScannerWorkerService.exe" start= auto depend= "WebInspect API"
displayname= "WebInspect DAST Scanner Worker Service" obj=".\(custom_service_account)" password="(password)"

In my case when I'had try to start service I received message "Error 1053: The Service did not Respond to the Start or Control Request in a Timely Fashion" .
Starting DAST.ScannerWorkerService.exe in cmd finished with error "The required library hostfxr.dll could not found."

I will try to set %DOTNET_ROOT% variable. 

Thank you vjohari very much for your usefull tips. 

edit:
Thank you ThatCanadaGuy for your tip. 
After "dotNet SDK 5.0.408 (x64)" install scanner service has started.

-- 
Pawel

Page 86

https://www.microfocus.com/documentation/fortify-ScanCentral-DAST/2210/SC_DAST_Guide_22.1.0.pdf

You can install Fortify WebInspect on Windows Server 2016. However, if you install the DAST sensor service on Windows Server 2016, you must first install the full .NET SDK or ASP.NET Core Runtime 5.0.3. Otherwise, the following error occurs:

DAST Sensor Service is installed on Windows Server 2019. "dotNet Framework 4.7 Featues" are installed with Server Manager, but hosfxr.dll file is unavailable. 

When I tried to install .NET Framework 4.8, I received error "NET Framework 4.8 or a later update is already installed on this computer". 
The workaround is to install ".NET Framework 4.8 Developer Pack"

https://dotnet.microsoft.com/download/dotnet-framework/thank-you/net48-developer-pack-offline-installer

File hosfxr.dll is still unavailable despite installing DevPack. Installing dotNet Framework 5.0 doesnt resolve problem too. 

problem still persists

-- 
Pawel