* Activation Problem - "This code is invalid or not for this computer".
Posted by Christian Kramer on 2019-06-06 12:48

I guess, you have entered your product key (length 27 characters) instead of the license key.

Please have a look at the document below.

It describes the 30 days trial activation. Please follow the description and select in the version type request dialog the option "Full version" and enter your product key.

Your installed ARES Commander version is not current. Please download the latest version from

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Comments (3)
David Wright
2011-09-26 23:25
I encountered this problem trying to install the trial version in Ubuntu 11.04, I was able to work around by opening the "graebert-gmbh" folder as administrator and running the executable file. The problem seems to be that unless you are administrator the folder for ARES does not allow to right info to the area needed to activate
Hope this helps any future users, the product at first run seems a great alternative to ACAD (I am a 20 year user trying to switch away from Wintel the only choice for ACAD)
Jessie Chew
2013-07-31 09:18
I'm a user of FelixCad within this 12yrs, on currently i'm switch to the other company and using Autocad, but the way as my boss instruction, i have to bring in a new software to Drafting Department also. So bad, i cann't use with FelixCad anymore.
I have a question, is it the FelixCad can be convert to ARES Commander?
Graebert Support
2013-07-31 10:58
Some time ago we have removed the free FelixCAD LT version from our website, because we could not support and maintain this old product anymore. Particularly there are a lot of compatibility issues with Windows Vista/7/8. A re-activation of FelixCAD 5 LT is also not longer possible.

Our follow-up CAD program is ARES Commander Edition with new user interface, integrated 3D ACIS functionality and enhanced programming interfaces. Detailed information can be found under

Please test our 30-days-trial version. It supports also FelixCAD and FelixCADT LT drawing file format (.flx) for file conversion.

As modern and free 2D CAD alternative we recommend DraftSight. Its CAD-kernel is also developed by the Graebert GmbH:
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