since upgrading to windows 10 addictive drums 2 no longer work. 
Instead I get - Wrong Computer ID - Please make sure that host is not run in compatibility mode...
I have tried running the online installer but nothing happens.
 

You need to remove your pre windows 10 computer name in the online installer and then activate on your windows 10 computer.  Is this a pain yes, but it does work had to do this.

thank you will try this

john5959
thank you will try this

Give us an update.

According to XLNAudio's FAQ:
 
To redeem this issue, simply run the Online Installer. You will be asked to add your computer again. After that, hit the "Install and update all" button to authorize your products.
 
I had the same issue as OP.
I followed the procedure above.
It worked.

Likewise for me.  The message says it is the computer name that is in error, but actually XLN tracks the OS, number of cores and memory size.  You have to delete the old system.  I'm not sure exactly what action clears this up.  I used the XLN online installer to add a new entry for my Windows 10 system.  It happened that there was an update available for AC2, so I installed that at the same time.  One way or another the problem is corrected.

Yep.  Same thing happened to me when I got the Threshold 2 Windows 10 update last week.  No biggie.  Just run the online installer, remove the "old computer" and add the "new computer."

Takes about 3 minutes total. (It has to "refresh your installs)

This is really a great forum
 
I was getting this error on Sonar and I also got it on Sony Movie Creator 13.
 
I sent a message to XLN a few days ago but all they did was send me an auto response that they would contact me soon.
 
Anyway, the re-running of the online installer (with no DAWs loaded) seems to have fixed the problem, at least for now.
 
Great forum, thanks.
 
 

Why do I got to kept going through this crap! I just want to record!
Now I got to go find out exactly how to do this because I'm not thinking about XLN crap!
 
It would really help if someone walks me through exactly this procedure! 

Tell it to XLN Audio
https://xlnaudio.groovehq.com/knowledge_base/topics/my-product-is-suddenly-not-authorized-wrong-computer-id-or-this-instrument-is-in-trial-mode