Why does my MATLAB Engine program not run correctly when outdated LIBUT.DLL is present in the SYSTEM32 directory?

As part of another project, I copied DLL-files from an earlier version of MATLAB to C:\WINDOWS\SYSTEM32. Now, when running my MATLAB Engine application, I receive the following error:

 Entry point utsetallocfcns not found in libut.dll

Answer 1

[MathWorks Support Team]

MATLAB DLL-files should not be placed in C:\WINDOWS\SYSTEM32. Because this system directory is searched before the normal MATLAB library locations, it circumvents the protocols that match library versions to a specific version of MATLAB. This often manifests in the form of errors such as:

 Entry point utsetallocfcns not found in libut.dll

The Dependency Walker described in the Related Solution can be used to diagnose this situation and locate the offending libraries.