What no-install remote support is
No-install remote support (also called on-demand or attended support) is a way to reach a person's screen without anything being set up beforehand. The user isn't part of a managed fleet, there's no software waiting on their machine, and you didn't have to plan for this call yesterday. When they need help right now, they run a tiny connector, hand you a code, and you're in.
Contrast that with agent-based access, where a small program is deployed to a machine in advance and stays running. Agents are what make unattended access and continuous monitoring possible — you can reach a server at 3 a.m. with nobody sitting at it. But that only works for machines you already manage. No-install support fills the other half: the one-off, unplanned, "I've never touched this computer before" moment.
How a code-based session works
A code-based session trades a standing install for a short, disposable handshake. It takes three steps:
Generate a code
The technician creates a connect code from the console. It's short and human-readable — meant to be spoken aloud, not copy-pasted.
User runs the connector
The user runs a lightweight connector, reads the 8-character code back — say, over the phone — and approves the PIN prompt on their own machine.
Technician connects
The code and PIN match, the session opens, and you get an instant screen view with full control. No install, no reboot, no waiting.
The whole exchange takes seconds, and because the code is short enough to say out loud, it works over any channel — a phone call, a chat message, an email. The user never has to find a download link, hunt through settings, or understand what an "agent" is.
Why it matters
The value of no-install support is reach and speed:
- Reach anyone. The person you're helping doesn't need to be on your fleet, on your network, or known to your system at all. If they can run a small file and read a code back, you can help them.
- Nothing to deploy ahead of time. There's no rollout, no policy push, no "did the agent install correctly?" No prerequisite means no delay and no failure mode to troubleshoot before the real problem.
- Fastest path from problem to fix. It collapses the distance between "I have a problem" and "it's fixed" to a single phone call. That's the entire point of a help desk, and code-based sessions are the shortest version of it.
Is it secure?
Yes — and the security model is exactly what you'd want for reaching a stranger's machine: consent-first. The session can't start until the user approves the PIN on their own screen, so a technician can never connect silently or without the person's knowledge. The user is always the one who opens the door.
Beyond that, connections are encrypted, the code is single-purpose, and the session ends when you're done — disconnecting leaves nothing running on the remote machine. For the full picture of how AllTracer handles isolation, access control, and encryption, see our security page.
No-install vs agent-based
These aren't rivals — they're two tools for two jobs, and most teams need both.
No-install (code-based) is the right call for ad-hoc, one-off, and unmanaged users: a customer who called in, a family member's laptop, a machine you'll likely never see again. It's fast, leaves no footprint, and requires zero prep.
Agent-based is the right call for always-on managed fleets: the machines you're responsible for day to day, where you want unattended access, live health metrics, and alerts that fire before the user even notices. We break the trade-off down in detail in RMM vs remote support.
AllTracer's approach
AllTracer does both from one place. On-demand support runs on 8-character connect codes that are PIN-gated by the user, giving you instant screen view and control the moment they approve. Sessions support multiple viewers with a single controller and clean handoff, so a second technician can watch or take over without dropping the connection — and every connection is encrypted.
The same console also runs real-time RMM for the Windows machines you manage, so you're not stitching two products together. Explore the platform features, see how it fits a help desk, or join a session right now with a code.