I received a softlock license. However, when starting RSTAB / RFEM, the "Authorization" dialog box does not appear. What do I have to do to activate the license?


If the dialog box "Authorization" does not appear when opening the programs, it is because an authorization file has already been used on this computer. To activate the softlock license, first delete the file "AUTHOR.ini", which is located under the following directory by default: C: \ ProgramData \ Dlubal \ Global \ General Data If you subsequently restart RSTAB / RFEM, the authorization window will appear in which you can activate the license. If that did not work, please send me the authorization.txt, which you can create via Help> Authorization> Diagnosis.


Activate softlock license, authorization, student version

Contact us

Contact Dlubal Software

Have you found your question?
If not, contact us or send us your question via the online form.

(267) 702-2815


RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD
RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD