I want to convert an old SOAP Webservice to the new PB 2022 R3 HTTP-Client?

The Problem is, Windows integrated Authentification (SSPI) is used.

I have read from Armen that integrated windows authentification is to be build into the http-Client. However, this is explicitly denied in the documentation of PB 2022 R3.

Are there other ways than Chilcat, to solve this problem.  

Thanks in advance for your help.