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Discuss installation & licensing of our Ansys Teaching and Research products

DLL missing after Ansys Student Version installation

    • Henrique Alves Junqueira Nogueira Branco

      Hello everyone.

      I installed the Ansys Student version 19.1 and when I start Workbench I got this error:


      RnWB2.exe - system error

      "The program can´t start because api-ms-win-crt-string.l1-1-0.dll is missing in your computer. Try to reinstall the program to solve the problem"

      Can anyone help me, please? 

    • JakeC
      Ansys Employee


      It sounds like you may be missing the Universal C Runtime.  Please see this microsoft post here:

      It may also be installed if you update windows to the latest updates for your version of Windows.

      Thank you,


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