I thought I would clear up a few things.
LogMeIn Free is actually free for commercial use. The company repeatedly takes the stance that it is completely free for commercial use. While it is difficult to find it stated in the Legal section, it is free. It just doesn't come with all the bells and whistles typically associated with remote access. For that, you will need to purchase the Pro version.
http://community.logmein.com/t5/Free/Logmein-free-for-commercial/td-p/50223https://secure.logmein.com/welcome/get_logmein_free/why_is_it_free.aspTeamViewer Free Edition is explicitly for personal use. If you are using it in a business application e.g. in the office, it is considered commercial use and will require to at least purchase the base license at $800. This does actually have a web access portal like LogMeIn. Though using the actual program on both sides is much more effective. Otherwise, it's similar to LogMeIn with the browser. TeamViewer is also capable of access over LAN so bandwith issues in office disappear.
Remote Desktop is Microsoft's proprietary remote access protocol that can be accessed across a variety of platforms including Android, iOS, Windows, OSX, and Linux. This one is also free for commercial use given that you have purchased a professional, Ultimate, or Enterprise Version of Windows. It is very bandwith efficient and has built-in encryption. (This is the main reason buying the professional editions is recommended for businesses as well as the ability to join domains.) However, it should be noted that this is not a "plug-and-play" solution. Typically a port must be opened on your firewall to allow access outside of the office.
There are other access methods including VMWare View, Citrix, VNC, and many more. PM if you want information regarding these.
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