Have you looked at API RpDeleteUser()? It is described in the Advanced Web Server Toolkit manual around or about page 155. This document is located in the NET+OS installation directory in the Documentation directory in file Advanced_Web_Server_Toolkit.pdf.
Thanks for that, but RpDeleteUser seems to work only for the RomPager.
CGI pointers that are passed to RpExternalCgi still have the previous correct username and password.
Is there a way to set and reset username and password of ALL CGI pointers that can be passed to RpExternalCGI?
A lot of browsers retain the user name if not the password in cache. So using basic authentication this may be a problem for you. Try using Digest authentication which passes a nonce between the browser and the web server.