We welcome your comments on OpenSolver.

559 thoughts on “Feedback”

  1. Hello OpenSolver team.

    I love OpenSolver! This is much more powerful than the EXCEL built-in Solver.
    I had one problem about SATALIA SolveEngine. I clicked the “revoke” key in Satalia Dashboard by mistake. When I use the Satalia Using SolveEngine, it showed up with below message:
    OpenSolver 2.9.0 encountered an error:
    Invalid API key, please check at

    I tried unloading Open Solver and deleting all the files, but it didn’t work – the same message pops up.

    I didn’t find a place to update the API key of Satalia using SolveEngine.

    Could you please do me a favor?

  2. Hello OpenSolver team!

    Thanks to the great product! Open Solver is more than 10 times faster than the Excel built-in solver. I love this product!

    But I have one question about SATALIA SolveEngine. I somehow clicked the “revoke key” button in SATALIA dashboard. Now when I tried to use SATALIA solveEngine, it popped up invalid key. How can I solve this problem? I tried deleted Open Solver from my computer, but it seemed to remember the SATALIA key, and it still showed “invalid key“. How can I update the SATALIA key?

  3. Your latest version of OpenSolver2.90_AdvancedWin is triggering my virus detection software as having a Trojan.GenericKD in it. Can you scan this on your end and make sure the distributable is not infected with malicious code.

    Version 2.8.6 seems to be clean.

    1. We get this a lot. You can upload OpenSolver to, and will see that most of the virus checkers report the code as fine. The issue is with your virus checker, not with OpenSolver. Hope this helps. Andrew

  4. Hi team OpenSolver! I’m trying to automate the OpenSolver process through VBA & create a separate sheet which contains the Sensitivity Analysis to get shadow prices, but I haven’t quite figured out how/where to incorporate GetDuals. Currently running OpenSolver smoothly using Application.Run
    Thanks so much for creating this wonderful tool!

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