Having issues with Navigraph app on windows - error 0xc000007b

I have been having real hard time with the desktop application since the last 3/4 days - the app simply stopped launching on my windows 10 machine and throws a 0xc000007b (attached screenshot) error when I try to launch it.
looked everywhere to solve it but to no avail:

  • deleted the app and reinstalled (6 times !!)
  • redownloaded the VS_redis files (as advised in one of the posts here) and reinstalled both 64 and 32 versions
    I admit that I’m clueless now how to get it to work back.
    any help would be really appreciated.
    Screenshot 2021-06-13 123616



I suggest a fresh start using exact procedure below :

Please disable any Antivirus and firewall. Uninstall AV if needed.

Please use only Windows Programs and Features to uninstall Simlink and Charts:

  • If they exist delete folders:
    c:\Program Files\Navigraph\Simlink
    c:\Users\username\AppData\Roaming\Navigraph\Charts c:\Users\username\AppData\Local\Programs\Navigraph Charts
  • Download and install latest Charts .
  • Download and install latest Simlink .

If same problem please try again FAQ - FMS Error "api-ms-win-ctr-runtime-l1-1-0.dll" or "(0xc000007b)"

Please let us know how you get on.


Hi Ian,

Thanks for the guidance.
I tried exactly to word the same steps like 6 or seven times. And followed the VC reinstall in all combinations all to no avail.

I’m at this point giving up on this thing as the last resort is to format my computer which I’m not ready to do.

Sad that this software is failing me for a subscription that I’m paying just for nothing.

Please tell me that there’s a way to get this work back again.


Please try going back to a Windows Restore point when the system was performing correctly.


Hi Ian,

I’ve tried all possible venues, but going back to a working restore point on windows is not an option for me - I use the same machine for other stuff and cant afford loosing any of the data it holds.
I was hoping for a support from you guys to fix this issue - but so far I’m only turning around.
isn’t there a fix that you will issue or something ? as far as I know I’m not the only one facing this kind of an error.