Three ways onto somebody's machine
A user says "can you just take a look". Three different technologies sit behind that sentence and they behave differently enough that picking the wrong one is visible to the person on the other end.
- Remote Desktop (RDP)
- Microsoft's protocol, launched from
mstsc.exe. It opens a session on the remote machine and, on a workstation, throws the signed-in user out to the lock screen. - Remote assistance and shadowing
- Quick Assist on modern Windows, Remote Assistance (
msra.exe) before it, the Remote Control feature in Configuration Manager (SCCM), Remote Help in Intune. These join the session the user is already sitting in and you both watch the same screen. - Third-party remote tools
- TeamViewer, ScreenConnect (formerly ConnectWise Control), AnyDesk, Splashtop, LogMeIn Rescue. Agents on the endpoint that broker a connection through the vendor, so a managed service provider can reach a machine wherever it is, without needing a route into the company network first.
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The difference worth carrying into an interview
RDP takes the session
- Opens a session of its own on the machine.
- A Windows desktop allows one session at a time, so the person sitting there lands on the lock screen.
- Which is why desks keep RDP for servers, jump boxes and machines nobody is sitting at.
Remote control shadows the session
- You both watch the same screen, and their work stays on it.
- The mouse stays theirs until they hand it over.
- This is what a helpdesk uses on a person, and what the tools in the next section do.