https://learn.microsoft.com/en-us/dotnet/api/system.directoryservices.protocols.ldapconnection?view=netframework-4.8.1&viewFallbackFrom=dotnet-plat-ext-7.0
LdapConnection Class (System.DirectoryServices.Protocols) | Microsoft Learn
The LdapConnection class creates a TCP/IP or UDP LDAP connection to Microsoft Active Directory Domain Services or an LDAP server.
class systemprotocolsmicrosoftlearn