I need to connect to the desktop, not to admin-user, but to guest or another user created on this computer. So that while admin uses his computer, I can remotely watch the guest account. Default Windows RDP(mstsc.exe) allowed to connect to any users. For example "23.166.183.33\guestuser" or "23.166.183.33\John" and we both can use PC. Radmin connection now allowed to chose user in GUI.
Help please, or it even possible?
Unfrotunately, its not possible. But you can change Windows users while connecting.