MsraCon
Remote Desktop screen sharing Tool with Windows Authentication
...The Viewer can take control over the Mouse and Keyboard. It uses Windows Authentication NTLM in a Workgroup. Or Kerberos Authentication for Windows Active Directory Domain.
It is only a programming sample, don't use the Software in productive Environments!
It uses the Microsoft Remote Desktop API RDPCOMAPILib and AxRDPCOMAPILib the source Code is in C#. Requires Net Framework 4.5 or higher to be installed.