LogMeIn is free and it's the best I've found.
Using RealVNC on the same network at work, I would have a lot of lag.
Right. Soooo...I'm not saying you did not, but I've never had lag on a decent network with RealVNC and I use it a ton. It's sent with Cisco UC apps that still runs on windows (Unity, IPCC...etc), I use it on every PC (8) and VM (6) I own and nearly ever customer network where I manage a Cisco app that runs on Windows. Which means I often use RealVNC over the Internet via VPNs and completely congested Internet connections.
I suspect something else is/was going on there. The ONLY reason I am trying to counter argue the RealVNC point is because the last I used logmein *I* personally disliked it for the following reasons...
1. Web based.
2. Heavier agent/client/server..etc type installs compared to the VNC server. No TSR for the client.
3. Slower to get logged in..etc.
4. Customers, IT departments and so forth will frown on an Internet based remote access service - as opposed to someone VPN'ing into their network and using VNC, RDP and so forth. (Unless 100% managed by that IT department and deemed secure)
I was just looking for more technical reasons besides "VNC was laggy." Considering I've never had an issue with VNC, and I know hundreds of other people who use it with no issues, I can't consider that a true technical reason to use/push logmein over VNC, RDP or MPE.
I read this a little and it appears I'm trying to be a dick. Not true, I just don't understand the appeal to logmein and I don't understand why RealVNC was laggy for you.