Mclmcrrt9-9.dll ((free))
The file mclmcrrt9_9.dll is a critical "proxy layer" dynamic link library associated with the MATLAB Runtime (MCR) version 9.9, which corresponds to the MATLAB R2020b release. This file allows computers without a full MATLAB installation to run standalone applications, shared libraries, or components generated by the MATLAB Compiler. Understanding mclmcrrt9_9.dll The name follows a specific naming convention: mclmcr: Stands for MATLAB Compiler Library. mcrrt: Refers to the MATLAB Compiler Runtime. 9_9: Specifies the version number (9.9), tied to R2020b.
If mclmcrrt9-9.dll is missing, corrupted, or not registered, the application will fail immediately. mclmcrrt9-9.dll
Part 7: For Developers – Compiling MATLAB Code with MCR 9.9
If you are distributing an application that uses mclmcrrt9-9.dll, follow these best practices: The file mclmcrrt9_9
: Applications are strictly tied to specific versions of the runtime. An application compiled in R2015b requires version 9.0; it generally cannot use version 9.1 or 8.5. Bit-depth Conflicts If missing, add them manually
Why is it on my PC?
You have this file because one of the following installed a standalone application built with MATLAB:
The specific nomenclature "9_9" indicates that this file belongs to MATLAB Runtime version 9.9 , which corresponds to the Core Functions and Purpose Application Execution



