Join Teams work meetings from Microsoft Teams (free) and vice versa

Microsoft Teams (Free) users can currently join Teams for work (or school) meetings only as guests, which requires them to use a browser and results in a sub-optimal experience. The new feature rolling out will allow these users to join Teams for work (or school) meetings in one click, without being redirected to the browser or asked to fill in their name/surname. They will also be able to continue collaborating with the meeting organizer and other participants via meeting chat after the meeting.  The feature will work in the opposite way as well, so Teams for work (or school) will just as easily be able to join meetings hosted by a Teams Free user with one click. This is associated with Roadmap ID: 167326

RDP 6.1 in WinXP VS Win2008

Why oh why do they do it this way....?

I am not always impressed by the implementations from Redmond. But this one actually gave me something to think about, and stole a few hours of work....

First of all, Included in WinXP SP3 is the RDP 6.1, but the file version states 6.0? What is that about. The version number was the first thing I checked when the RDP client told me NLA was not supported.

I found quite a few posts where people asks about the same thing, but no answers.

but ok, I have the right version of RDP, which is supposed to support NLA. Why doesn't it work. Well apparently MS decided to include the 6.1 in SP3, but not to turn the feature on by default.
What you need to do to RDP into a NLA enabled Win2008 servier, is to do some regediting.

Here is the article I used to solve my issue: