side by side configuration is incorrect

Question

I am trying to download Landex Remote onto a new laptop and I keep getting an error message

C:\program files(x86)\LandexRemote.exe side by side configuration is incorrect

see application log or use the command-line sxstrace.exe tool

code 14401

Answer 1

Hello,

That error almost always means your new laptop is missing the specific Microsoft Visual C++ library version that the app relies on. Since there are many different versions out there, it is easiest to check exactly which one your computer is asking for so we do not have to guess.

Please open your Start menu, type Event Viewer, and hit Enter. On the left side, expand Windows Logs and then click on Application. Give it a second to load, then look near the very top of the list for a red error entry whose source says SideBySide. Click on that error and read the message box in the general tab just below it. It will mention a specific missing version name or number.

After that, you can download the required version from the link I provided.

Answer 2

The error indicates that the application’s side-by-side (SxS) configuration is broken, usually because a required Visual C++ or other Win32 side-by-side assembly is missing or the manifest is invalid.

To troubleshoot on Windows 11:

1. Check the application’s manifest and private assemblies
   1. Open C:\Program Files (x86) and locate the LandexRemote folder (or the folder that contains LandexRemote.exe).
   2. In that folder, look for a manifest file named like the assembly, for example LandexRemote.manifest or <assemblyName>.manifest.
   3. If present, ensure the DLLs it depends on are in the same folder or in a subfolder named <assemblyName>\ with a matching <assemblyName>.manifest inside. If the loader cannot find the dependent assembly as a private assembly, the load fails with a side-by-side error and “The system cannot execute the specified program”.
2. Reinstall or repair the required side-by-side assemblies Side-by-side assemblies are groups of DLLs and related resources described by manifests and used by Windows as units of naming, versioning, and deployment. If the version required by Landex Remote is missing or corrupted, the loader reports a side-by-side configuration error. Recommended actions:
   1. Uninstall Landex Remote from Settings → Apps → Installed apps.
   2. Download the latest installer for Landex Remote from the vendor and reinstall it so it can register its side-by-side assemblies correctly.
   3. If the vendor documents a specific Microsoft Visual C++ Redistributable or other runtime requirement, install that exact version so the required side-by-side assembly and manifest are present.
3. Use sxstrace.exe to identify the missing assembly Since the error message explicitly mentions sxstrace.exe, run it to see which assembly or manifest is failing:
   1. Open an elevated Command Prompt (Run as administrator).
   2. Start tracing:

            sxstrace trace -logfile:sxstrace.etl
      

   3. Reproduce the error by launching LandexRemote.exe.
   4. Stop tracing:

            sxstrace stoptrace
      

   5. Convert the trace to a readable text file:

            sxstrace parse -logfile:sxstrace.etl -outfile:sxstrace.txt
      

   6. Open sxstrace.txt in Notepad and look for lines that show “ERROR” or “cannot resolve reference” to identify the exact missing or mismatched assembly version.
   7. Once identified, install or repair that assembly (for example, the matching Visual C++ runtime or other side-by-side component) and then try launching Landex Remote again.
4. If the issue persists If reinstalling the app and required runtimes does not resolve the problem, provide the vendor with the relevant portion of sxstrace.txt so they can confirm which side-by-side assembly and manifest version their application expects.

These steps address the typical causes of side-by-side configuration errors: missing or incompatible side-by-side assemblies, incorrect manifests, or incomplete installation of the application’s dependencies.

---

References:

• Troubleshooting C/C++ Isolated Applications and Side-by-side Assemblies
• About Side-by-Side Assemblies
• Side-by-side Assembly Sharing
• Side-by-Side Assemblies
• Assemblies and side-by-side execution
• Side-by-Side Execution in the .NET Framework